{
  "cveId": "CVE-2026-102269",
  "url": "https://patchblox.com/security/cve/CVE-2026-102269",
  "summary": "CVE-2026-102269 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-102269, released October 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "PyJWT: Non-canonical signature segments enable raw-token revocation bypass",
  "description": "PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, PyJWT signature segment is affected because signature segment decoding accepts characters outside the canonical Base64URL representation. This occurs when non-Base64URL characters are appended to a valid compact JWS signature segment. As a result, base64url_decode produces the same signature bytes for different serialized segments. Consequently, raw-token revocation checks can fail to recognize an equivalent modified token. This issue is fixed in version 2.14.0.",
  "published": "2026-09-28T21:17:14Z",
  "severity": "Moderate",
  "cvss": 5.4,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
  "cwe": "Incorrect Behavior Order: Validate Before Canonicalize",
  "epss": 0.00224,
  "epssPercentile": 0.13049,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-102269",
  "fixes": [
    {
      "platform": "linux",
      "product": "pyjwt",
      "release": "Debian 14",
      "fixedVersion": "2.14.0-1",
      "fix": "DEBIAN-CVE-2026-102269",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-102269",
      "released": "2026-10-04T21:29:23Z"
    },
    {
      "platform": "linux",
      "product": "python-PyJWT",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "2.12.1-160000.3.1",
      "fix": "OPENSUSE-SU-2026:22074-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-22074-1",
      "released": "2026-11-07T00:47:19Z"
    },
    {
      "platform": "linux",
      "product": "python-PyJWT",
      "release": "sles 15.6",
      "fixedVersion": "2.8.0-150400.8.20.1",
      "fix": "SUSE-SU-2026:5064-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5064-1",
      "released": "2026-11-07T00:42:08Z"
    },
    {
      "platform": "linux",
      "product": "python-PyJWT",
      "release": "sles 15.7",
      "fixedVersion": "2.8.0-150400.8.20.1",
      "fix": "SUSE-SU-2026:5064-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5064-1",
      "released": "2026-11-07T00:42:08Z"
    },
    {
      "platform": "linux",
      "product": "python-PyJWT",
      "release": "sles 16.0",
      "fixedVersion": "2.12.1-160000.3.1",
      "fix": "SUSE-SU-2026:24219-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-24219-1",
      "released": "2026-11-07T00:44:01Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}