{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.1.7"
              },
              {
                "introduced": "4.2.0"
              },
              {
                "fixed": "4.2.2"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "82e9f60f994a7fad2d89f3c94e9090a4a8990c70"
            },
            {
              "introduced": "04ccbfd709eef8f4af53d6237514fbe9db7ea81f"
            },
            {
              "fixed": "d2b2776cd44a8d2f391194d90f50ce7b3d61a1f6"
            }
          ],
          "repo": "https://github.com/apache/cxf",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "apache",
    "cwe_ids": [
      "CWE-289"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50627.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "4.2.0"
          },
          {
            "fixed": "4.2.2"
          },
          {
            "fixed": "4.1.7"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "The JwtAccessTokenValidator class in Apache CXF fails to validate the 'aud' (Audience) claims of incoming JWT access tokens. This allows a JWT issued for one Resource Server to be successfully replayed against a completely different Resource Server, leading to Token Confusion/Routing attacks. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.",
  "id": "CVE-2026-50627",
  "modified": "2026-07-12T03:55:00.374808872Z",
  "published": "2026-06-12T08:55:41.657Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/11/4"
    },
    {
      "type": "WEB",
      "url": "https://repo.maven.apache.org/maven2"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50627.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:37390"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-50627"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50627.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://lists.apache.org/thread/0jfzz9q992957b99tw7hodcqjfyxwb1m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50627"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488298"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache CXF: OAuth2: Missing JWT Audience and Issuer Validation in Access Token Validator"
}