FKIE_CVE-2026-50627

Vulnerability from fkie_nvd - Published: 2026-06-12 10:16 - Updated: 2026-10-26 11:10
Severity
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Summary
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 or 3.6.12, which fixes this issue.
References
security@apache.orghttps://lists.apache.org/thread/0jfzz9q992957b99tw7hodcqjfyxwb1mVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/06/11/4Mailing List, Third Party Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:37390
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/security/cve/CVE-2026-50627
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://bugzilla.redhat.com/show_bug.cgi?id=2488298
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50627.json
Impacted products
Vendor Product Version
apache cxf *
apache cxf *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.cxf:cxf-rt-rs-security-oauth2",
          "product": "Apache CXF",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "4.2.2",
              "status": "affected",
              "version": "4.2.0",
              "versionType": "semver"
            },
            {
              "lessThan": "4.1.7",
              "status": "affected",
              "version": "4.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "3.6.12",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@apache.org"
    },
    {
      "affectedData": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:apache_camel_spring_boot:4.18"
          ],
          "defaultStatus": "affected",
          "packageName": "cxf-rt-rs",
          "product": "Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "security-oauth2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:apache_camel_spring_boot:4.18"
          ],
          "defaultStatus": "affected",
          "packageName": "cxf-rt-rs-security",
          "product": "Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "oauth2-saml",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "affected",
          "packageName": "cxf-rt-rs-security-oauth2",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "affected",
          "packageName": "cxf-rt-rs-security-oauth2-saml",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jbosseapxp"
          ],
          "defaultStatus": "unaffected",
          "packageName": "cxf-rt-rs-security-oauth2",
          "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jbosseapxp"
          ],
          "defaultStatus": "unaffected",
          "packageName": "cxf-rt-rs-security-oauth2-saml",
          "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_web_server:5"
          ],
          "defaultStatus": "affected",
          "packageName": "cxf-rt-rs-security-oauth2",
          "product": "Red Hat JBoss Web Server 5",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_web_server:5"
          ],
          "defaultStatus": "affected",
          "packageName": "cxf-rt-rs-security-oauth2-saml",
          "product": "Red Hat JBoss Web Server 5",
          "vendor": "Red Hat"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C0505632-D713-4EFC-B857-12EBD5C3DF33",
              "versionEndExcluding": "4.1.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B1BF06FC-96AD-4663-9959-1B1493D4A2A0",
              "versionEndExcluding": "4.2.2",
              "versionStartIncluding": "4.2.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The JwtAccessTokenValidator class in Apache CXF fails to validate the \u0027aud\u0027 (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.\u00a0Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue."
    },
    {
      "lang": "es",
      "value": "La clase JwtAccessTokenValidator en Apache CXF no valida las reclamaciones \u2019aud\u2019 (Audiencia) de los tokens de acceso JWT entrantes. Esto permite que un JWT emitido para un Servidor de Recursos sea reproducido con \u00e9xito contra un Servidor de Recursos completamente diferente, lo que lleva a ataques de Confusi\u00f3n/Enrutamiento de Tokens. Se recomienda a los usuarios actualizar a las versiones 4.2.2 o 4.1.7, que corrige este problema."
    }
  ],
  "id": "CVE-2026-50627",
  "lastModified": "2026-10-26T11:10:00.157",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 6.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 6.0,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2,
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-50627",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-15T18:31:53.486235Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-12T10:16:22.587",
  "references": [
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      "source": "security@apache.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://lists.apache.org/thread/0jfzz9q992957b99tw7hodcqjfyxwb1m"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Third Party Advisory"
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      "url": "http://www.openwall.com/lists/oss-security/2026/06/11/4"
    },
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      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50627.json"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-289"
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      "source": "security@apache.org",
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          "value": "CWE-303"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "type": "Secondary"
    }
  ]
}



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