CVE-2026-123369

compose-lint is a Docker Compose security linter that identifies dangerous misconfigurations before deployment. Prior to 0.31.0, compose-lint prints attacker-controlled service names, environment keys, file lines, and other Compose text without neutralizing GitHub Actions and Azure Pipelines workflow-command openers. When a workflow processes a pull request, legacy ##[ commands or a line-leading double-colon command can create false annotations, hide log regions, mask selected strings, or invoke other commands recognized by the runner. The affected text report paths do not alter the compose-lint exit code or pass or fail result, but they can misrepresent the CI output presented to reviewers. This issue is fixed in version 0.31.0.

• CWE-117
• CWE-150

• https://github.com/tmatens/compose-lint/commit/672bd11145621f787c295fb11f3a859cdec1b38d
• https://github.com/tmatens/compose-lint/pull/918
• https://github.com/tmatens/compose-lint/releases/tag/v0.31.0
• https://github.com/tmatens/compose-lint/security/advisories/GHSA-6f4g-xm8v-pgv6

Published

Nov 9, 2026

Last Modified

Nov 12, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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