{"id":"GHSA-5xjx-3w67-w9x9","aliases":[],"status":"published","title":"pypi-publish action revocation of CA in the chain that Sigstore uses in Trusted Publishing and Digital Attestations for PyPI","description":"### 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","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"critical","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2026-10-30T20:24:24Z","modified":"2026-10-30T20:30:05Z","fixes":[{"ecosystem":"GitHub Actions","package":"pypa/gh-action-pypi-publish","fixed_in":["1.14.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"GitHub Actions","package":"pypa/gh-action-pypi-publish","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.14.2"},{"fixed":"1.14.3"}]}]},{"source":"osv","ecosystem":"GitHub Actions","package":"pypa/gh-action-pypi-publish","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.3"}]},{"type":"GIT","events":[{"introduced":"0"},{"fixed":"7245906fb61fa33a13554f9d5fb856fe61758086"}]}],"versions":["v1.14.2","v1.14.1","v1.14.0","v1.13.0","v1.12.4","v1.12.3","v1.12.2","v1.12.1","v1.12.0","v1.11.0","v1.10.3","v1.10.2","v1.10.1","v1.10.0","v1.9.0","v1.8.14","v1.8.13","v1.8.12","v1.8.11","v1.8.10","v1.8.9","v1.8.8","v1.8.7","v1.8.6","v1.8.5","v1.8.4","v1.8.3","v1.8.2","v1.8.1","v1.8.0","v1.7.1","v1.7.0","v1.6.5","v1.6.4","v1.6.3","v1.6.2","v1.6.1","v1.6.0","v1.5.2","v1.5.1","v1.5.0","v1.4.2","v1.4.1","v1.4.0","v1.3.1","v1.3.0","v1.2.2","v1.2.1","v1.2.0","v1.1.0","v1.0.0a0"]}],"references":[{"url":"https://github.com/pypa/gh-action-pypi-publish/security/advisories/GHSA-5xjx-3w67-w9x9","tags":["web"]},{"url":"https://github.com/advisories/GHSA-5xjx-3w67-w9x9"},{"url":"https://github.com/pypa/gh-action-pypi-publish","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-5xjx-3w67-w9x9","title":"pypi-publish action revocation of CA in the chain that Sigstore uses in Trusted Publishing and Digital Attestations for PyPI","description":"### 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","status":"published","published":"2026-10-30T20:24:24Z","modified":"2026-10-30T20:24:25Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"critical"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:41:41.028239Z"}],"osv":[{"id":"GHSA-5xjx-3w67-w9x9","title":"pypi-publish action revocation of CA in the chain that Sigstore uses in Trusted Publishing and Digital Attestations for PyPI","description":"### 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","status":"published","published":"2026-10-30T20:24:24Z","modified":"2026-10-30T20:30:05.260372288Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"critical"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:46:38.911014Z"}]}}