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OpenAdvisories
Medium · 6.3 CVE-2026-63187 EUVD-2026-62865

Logto: OS command injection vulnerability exists in the Commitlint workflow

Published Aug 19, 2026 · Updated Aug 25, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
logto-io logto >= 1.40.1, < 1.41.0 —

References