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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
logto-io:logto
References 4
https://github.com/logto-io/logto/security/advisories/GHSA-869c-8mm3-w5cj
https://github.com/logto-io/logto/security/advisories/GHSA-869c-8mm3-w5cj
https://github.com/logto-io/logto/pull/9112
https://github.com/logto-io/logto/pull/9112
https://github.com/logto-io/logto/commit/4a1cab21c14d26d288ffffc509cc2a8cae247b…
https://github.com/logto-io/logto/commit/4a1cab21c14d26d288ffffc509cc2a8cae247b92
https://github.com/logto-io/logto/releases/tag/v1.41.0
https://github.com/logto-io/logto/releases/tag/v1.41.0