{
  "cveId": "CVE-2026-23991",
  "url": "https://patchblox.com/security/cve/CVE-2026-23991",
  "summary": "CVE-2026-23991 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-23991, released January 22, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "golang-github-theupdateframework-go-tuf: go-tuf is a Go implementation of The Update Framework (TUF)",
  "description": "go-tuf is a Go implementation of The Update Framework (TUF). Starting in version 2.0.0 and prior to version 2.3.1, if the TUF repository (or any of its mirrors) returns invalid TUF metadata JSON (valid JSON but not well formed TUF metadata), the client will panic during parsing, causing a denial of service. The panic happens before any signature is validated. This means that a compromised repository/mirror/cache can DoS clients without having access to any signing key. Version 2.3.1 fixes the issue. No known workarounds are available.",
  "published": "2026-01-22T03:15:47Z",
  "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": 0.00581,
  "epssPercentile": 0.48029,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "cosign",
      "release": "opensuse-leap 15.6",
      "fixedVersion": "3.0.5-150400.3.35.1",
      "fix": "SUSE-SU-2026:0777-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-0777-1",
      "released": "2026-03-03T13:22:27Z"
    },
    {
      "platform": "linux",
      "product": "cosign",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "3.0.5-160000.1.1",
      "fix": "OPENSUSE-SU-2026:20386-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-20386-1",
      "released": "2026-03-18T11:29:30Z"
    },
    {
      "platform": "linux",
      "product": "cosign",
      "release": "sles 15.7",
      "fixedVersion": "3.0.5-150400.3.35.1",
      "fix": "SUSE-SU-2026:0777-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-0777-1",
      "released": "2026-03-03T13:22:27Z"
    },
    {
      "platform": "linux",
      "product": "cosign",
      "release": "sles 16.0",
      "fixedVersion": "3.0.5-160000.1.1",
      "fix": "SUSE-SU-2026:20904-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-20904-1",
      "released": "2026-03-18T11:27:44Z"
    },
    {
      "platform": "linux",
      "product": "golang-github-theupdateframework-go-tuf",
      "release": "Debian 14",
      "fixedVersion": "2.4.1\u002B0.7.0-1",
      "fix": "DEBIAN-CVE-2026-23991",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-23991",
      "released": "2026-01-22T03:15:47Z"
    },
    {
      "platform": "linux",
      "product": "govulncheck-vulndb",
      "release": "opensuse-leap 15.6",
      "fixedVersion": "0.0.20260226T182644-150000.1.149.1",
      "fix": "SUSE-SU-2026:0757-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-0757-1",
      "released": "2026-03-03T11:34:04Z"
    },
    {
      "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"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}