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OpenAdvisories
Low · 2.3 CVE-2026-125123 EUVD-2026-121402GHSA-8v59-qmwv-4p6q

compose-lint: A file path in a pull request can issue CI workflow commands through compose-lint 0.31.0's command-line error messages

Published Nov 10, 2026 · Updated Nov 10, 2026 · Assigned by GitHub_M

Description

compose-lint is a Docker Compose security linter that identifies dangerous misconfigurations before deployment. In version 0.31.0, compose-lint's argument parser writes rejected repository paths to stderr without the output sanitizer when a path is passed without a preceding -- separator. A pull request can supply a path containing workflow-command syntax; a carriage return can position that command at the start of a new line recognized by the GitHub Actions runner, allowing the package, Docker image, or a pre-commit hook with misconfigured args to issue the command in the job log. The default pre-commit configuration includes -- and is not affected, the GitHub Action is not affected, and the lint pass or fail result is unchanged. This issue is fixed in version 0.32.0.

Affected products

VendorProductAffectedFixed
tmatens compose-lint = 0.31.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI compose-lint >= 0.31.0, < 0.32.0 0.32.0 GHSA-8v59-qmwv-4p6q

References