{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "<= 1.14.2",
        "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-5xjx-3w67-w9x9/GHSA-5xjx-3w67-w9x9.json"
      },
      "package": {
        "ecosystem": "GitHub Actions",
        "name": "pypa/gh-action-pypi-publish"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.14.3"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7245906fb61fa33a13554f9d5fb856fe61758086"
            }
          ],
          "repo": "https://github.com/pypa/gh-action-pypi-publish",
          "type": "GIT"
        }
      ],
      "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"
      ]
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-30T20:24:24Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "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",
  "id": "GHSA-5xjx-3w67-w9x9",
  "modified": "2026-10-30T20:30:05.260372288Z",
  "published": "2026-10-30T20:24:24Z",
  "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"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "pypi-publish action revocation of CA in the chain that Sigstore uses in Trusted Publishing and Digital Attestations for PyPI"
}