FKIE_CVE-2026-97468

Vulnerability from fkie_nvd - Published: 2026-10-09 11:17 - Updated: 2026-10-09 12:17
Severity
Summary
Apache CXF's STSTokenValidator and Security Token Service (STS) cached validated security tokens under a non-cryptographic 32-bit hash of the token (Java Arrays.hashCode/hashCode()), and treated a cache hit as proof that the presented token had already been validated. An attacker could craft a token (for example a UsernameToken or a self-signed SAML Assertion) whose hash collides with a cached entry. The token would then be accepted without password validation, signature trust verification or a call to the STS. This could let the attacker authenticate as another user and, through STS token validation or renewal, obtain STS-signed tokens for that identity. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.
References
security@apache.orghttps://lists.apache.org/thread.html/qthbnsyhqsxhl9p2h9v5dg4mnwv1b9r6
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/10/09/9
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.cxf:cxf-rt-ws-security",
          "packageURL": "pkg:maven/org.apache.cxf/cxf-rt-ws-security",
          "product": "Apache CXF",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "4.2.4",
              "status": "affected",
              "version": "4.2.0",
              "versionType": "semver"
            },
            {
              "lessThan": "4.1.9",
              "status": "affected",
              "version": "4.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "3.6.13",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@apache.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Apache CXF\u0027s STSTokenValidator and Security Token Service (STS) cached validated security tokens under a non-cryptographic 32-bit hash of the token (Java Arrays.hashCode/hashCode()), and treated a cache hit as proof that the presented token had already been validated. An attacker could craft a token (for example a UsernameToken or a self-signed SAML Assertion) whose hash collides with a cached entry. The token would then be accepted without password validation, signature trust verification or a call to the STS. This could let the attacker authenticate as another user and, through STS token validation or renewal, obtain STS-signed tokens for that identity.\nUsers are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue."
    }
  ],
  "id": "CVE-2026-97468",
  "lastModified": "2026-10-09T12:17:13.253",
  "metrics": {},
  "published": "2026-10-09T11:17:03.270",
  "references": [
    {
      "source": "security@apache.org",
      "url": "https://lists.apache.org/thread.html/qthbnsyhqsxhl9p2h9v5dg4mnwv1b9r6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/10/09/9"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Received"
}



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