Logto is the modern, open-source auth infrastructure for SaaS and AI apps. From 1.40.1 until 1.41.0, Logto's .github/workflows/commitlint.yml directly interpolated github.event.pull_request.title into the Commitlint on PR title step's inline echo command before piping the title to npx commitlint. A pull request title containing a single quote could terminate the echo string and append arbitrary shell commands on the GitHub Actions runner. The pull_request trigger used a read-only GITHUB_TOKEN and did not expose repository secrets, but injected commands could alter or disrupt the ephemeral workflow execution. This issue is fixed in version 1.41.0.
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Fixes

Solution

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Workaround

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History

Tue, 25 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 19 Aug 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Logto-io
Logto-io logto
Vendors & Products Logto-io
Logto-io logto

Wed, 19 Aug 2026 20:00:00 +0000

Type Values Removed Values Added
Description Logto is the modern, open-source auth infrastructure for SaaS and AI apps. From 1.40.1 until 1.41.0, Logto's .github/workflows/commitlint.yml directly interpolated github.event.pull_request.title into the Commitlint on PR title step's inline echo command before piping the title to npx commitlint. A pull request title containing a single quote could terminate the echo string and append arbitrary shell commands on the GitHub Actions runner. The pull_request trigger used a read-only GITHUB_TOKEN and did not expose repository secrets, but injected commands could alter or disrupt the ephemeral workflow execution. This issue is fixed in version 1.41.0.
Title Logto: OS command injection vulnerability exists in the Commitlint workflow
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-25T14:00:02.109Z

Reserved: 2026-07-15T22:13:00.721Z

Link: CVE-2026-63187

cve-icon Vulnrichment

Updated: 2026-08-25T13:59:58.104Z

cve-icon NVD

Status : Received

Published: 2026-08-19T20:17:20.063

Modified: 2026-08-25T14:16:53.060

Link: CVE-2026-63187

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-20T12:00:04Z

Weaknesses