{"id":"GHSA-5xjx-3w67-w9x9","aliases":[],"url":"https://o3.security/vulnerability/GHSA-5xjx-3w67-w9x9","summary":"pypi-publish action revocation of CA in the chain that Sigstore uses in Trusted Publishing and Digital Attestations for PyPI","details":"### Summary\n\nThe [pypi-publish action][pypi-publish] versions before 1.14.2 used to bundle the `emSign` root CA trust store certificate through the `certifi` distribution. It has since been removed through the bundle and the new version no longer includes them.\n\n[pypi-publish]: https://github.com/marketplace/actions/pypi-publish\n\n### Details\n\nThe `certifi`-provided TLS trust store is typically used by many projects in the Python ecosystem, including Sigstore that [pypi-publish] relies on for Trusted Publishing and Digital Attestations.\n\n### Related\n\nThe external compromise is being tracked at https://emudhra.we-have-a-problem.com","published":"2026-10-30T20:24:24Z","modified":"2026-10-30T20:30:05.260372288Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"GitHub Actions","name":"pypa/gh-action-pypi-publish","fixedVersion":"1.14.3"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/pypa/gh-action-pypi-publish/security/advisories/GHSA-5xjx-3w67-w9x9"},{"type":"PACKAGE","url":"https://github.com/pypa/gh-action-pypi-publish"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-30T20:30:05.260372288Z"}}