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CVE-2026-125123— 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

Quick assessment

Affected
tmatens compose-lint
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

compose-lint 是一款用于 Docker Compose 的安全检查工具，可在部署前识别危险配置错误。在 0.31.0 版本中，当用户传入的路径未以 分隔符开头时，compose-lint 的参数解析器会将被拒绝的仓库路径直接写入标准错误流（stderr），且未经过输出净化处理。攻击者可通过 Pull Request 提交包含 GitHub Actions 工作流命令语法的恶意路径；通过插入回车符（Carriage Return），可将该命令置于新行的起始位置，从而被 GitHub Actions 运行器

CVSS 2.3 · Low

Affected Version Matrix 1

VendorProduct Version RangeStatus
tmatens compose-lint = 0.31.0 affected
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I. Basic Information for CVE-2026-125123

Vulnerability Information
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Vulnerability Title
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
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
日志输出的转义处理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
tmatens compose-lint = 0.31.0 -

II. Public POCs for CVE-2026-125123

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III. Intelligence Information for CVE-2026-125123

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Patches & Fixes for CVE-2026-125123 (1)

Vendor Advisories for CVE-2026-125123 (1)

Vendor Pages for CVE-2026-125123 (1)

Same Patch Batch · tmatens · 2026-11-10 · 5 CVEs total

CVE-2026-125121 5.3 MEDIUM compose-lint: Text in a pull request can still issue CI workflow commands through compose-
CVE-2026-125125 2.3 LOW compose-lint: A symlink in a pull request can issue workflow commands through the compose-
CVE-2026-125124 2.3 LOW compose-lint: Text in a pull request can reach Azure Pipelines as logging commands through
CVE-2026-125122 2.3 LOW compose-lint: Text in a pull request can issue CI workflow commands through compose-lint 0

IV. Related Vulnerabilities

Same product: compose-lint
Same vendor: tmatens
Same weakness: CWE-117