{
  "cveId": "CVE-2025-66506",
  "url": "https://patchblox.com/security/cve/CVE-2025-66506",
  "summary": "CVE-2025-66506 is fixed in 9 products on 1 platform, first by DEBIAN-CVE-2025-66506, released December 4, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "golang-github-sigstore-fulcio: Fulcio is a free-to-use certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) iden...",
  "description": "Fulcio is a free-to-use certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity. Prior to 1.8.3, function identity.extractIssuerURL splits (via a call to strings.Split) its argument (which is untrusted data) on periods. As a result, in the face of a malicious request with an (invalid) OIDC identity token in the payload containing many period characters, a call to extractIssuerURL incurs allocations to the tune of O(n) bytes (where n stands for the length of the function\u0027s argument), with a constant factor of about 16. This vulnerability is fixed in 1.8.3.",
  "published": "2025-12-04T22:15:49Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00226,
  "epssPercentile": 0.13428,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "golang-github-sigstore-fulcio",
      "release": "Debian 14",
      "fixedVersion": "1.8.5-1",
      "fix": "DEBIAN-CVE-2025-66506",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-66506",
      "released": "2025-12-04T22:15:49Z"
    },
    {
      "platform": "linux",
      "product": "govulncheck-vulndb",
      "release": "opensuse-leap 15.6",
      "fixedVersion": "0.0.20251209T172047-150000.1.127.1",
      "fix": "SUSE-SU-2025:4395-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-4395-1",
      "released": "2025-12-15T11:15:27Z"
    },
    {
      "platform": "linux",
      "product": "govulncheck-vulndb",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.0.20260723T184607-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21483-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21483-1",
      "released": "2026-07-30T09:09:47Z"
    },
    {
      "platform": "linux",
      "product": "govulncheck-vulndb",
      "release": "sles 15.6",
      "fixedVersion": "0.0.20251209T172047-150000.1.127.1",
      "fix": "SUSE-SU-2025:4395-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-4395-1",
      "released": "2025-12-15T11:15:27Z"
    },
    {
      "platform": "linux",
      "product": "podman-tui",
      "release": "Fedora 43",
      "fixedVersion": "1.11.3-1.fc43",
      "fix": "FEDORA-2026-1842AAEA5D",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-1842aaea5d",
      "released": "2026-06-28T08:19:54Z"
    },
    {
      "platform": "linux",
      "product": "podman-tui-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.11.3-1.fc43",
      "fix": "FEDORA-2026-1842AAEA5D",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-1842aaea5d",
      "released": "2026-06-28T08:19:54Z"
    },
    {
      "platform": "linux",
      "product": "podman-tui-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "1.11.3-1.fc43",
      "fix": "FEDORA-2026-1842AAEA5D",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-1842aaea5d",
      "released": "2026-06-28T08:19:54Z"
    },
    {
      "platform": "linux",
      "product": "prometheus-podman-exporter",
      "release": "Fedora 43",
      "fixedVersion": "1.21.2-1.fc43",
      "fix": "FEDORA-2026-A96D4EE174",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a96d4ee174",
      "released": "2026-06-28T08:17:20Z"
    },
    {
      "platform": "linux",
      "product": "prometheus-podman-exporter-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.21.2-1.fc43",
      "fix": "FEDORA-2026-A96D4EE174",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a96d4ee174",
      "released": "2026-06-28T08:17:20Z"
    },
    {
      "platform": "linux",
      "product": "prometheus-podman-exporter-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "1.21.2-1.fc43",
      "fix": "FEDORA-2026-A96D4EE174",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a96d4ee174",
      "released": "2026-06-28T08:17:20Z"
    },
    {
      "platform": "linux",
      "product": "runfinch-finch",
      "release": "amzn 2023",
      "fixedVersion": "1.10.0-1.amzn2023.0.6",
      "fix": "ALAS2023-2025-1336",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1336",
      "released": "2026-01-07T18:41:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}