{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.4.0"
              },
              {
                "fixed": "0.15.0"
              },
              {
                "introduced": "0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "e4ec0f504177676b4e3518d9e5f0743b2dc96710"
            },
            {
              "fixed": "d7565c405e188d1ad41d85d5f46adaeec4b85941"
            }
          ],
          "repo": "https://github.com/sigstore/gitsign",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-7c37-gx6w-8vc5"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-129",
      "CWE-390"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44310.json"
  },
  "details": "Gitsign is a keyless Sigstore to signing tool for Git commits with your a GitHub / OIDC identity. From 0.4.0 to before 0.15.0, CertVerifier.Verify() in pkg/git/verifier.go unconditionally dereferences certs[0] after sd.GetCertificates() without checking the slice length. A CMS/PKCS7 signed message with an empty certificate set is a structurally valid DER payload; GetCertificates() returns an empty slice with no error, causing an immediate index-out-of-range panic. On the gitsign --verify code path (the GPG-compatible mode invoked by git verify-commit), the panic is silently recovered by internal/io/streams.go's Wrap() function, which returns nil instead of an error. main.go then exits with code 0, causing exit-code-only verification callers to interpret the failed verification as success. This vulnerability is fixed in 0.15.0.",
  "id": "CVE-2026-44310",
  "modified": "2026-08-07T11:31:32.002944387Z",
  "published": "2026-05-15T16:17:53.558Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44310.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/sigstore/gitsign/security/advisories/GHSA-7c37-gx6w-8vc5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44310"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "gitsign --verify panics on empty-certificate PKCS7 and exits 0, bypassing exit-code callers"
}