Vulnerability-Lookup

GHSA-9MRV-8PVF-HF4M

Vulnerability from github – Published: 2026-06-12 12:31 – Updated: 2026-06-12 12:31

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.

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-50627"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-289"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-12T10:16:22Z",
    "severity": null
  },
  "details": "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, which fixes this issue.",
  "id": "GHSA-9mrv-8pvf-hf4m",
  "modified": "2026-06-12T12:31:33Z",
  "published": "2026-06-12T12:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50627"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/0jfzz9q992957b99tw7hodcqjfyxwb1m"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/11/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-50627 (GCVE-0-2026-50627)

Vulnerability from cvelistv5 – Published: 2026-06-12 08:55 – Updated: 2026-06-12 09:28

Title

Apache CXF: OAuth2: Missing JWT Audience and Issuer Validation in Access Token Validator

Summary

Severity

No CVSS data available.

CWE

CWE-289 - Authentication Bypass by Alternate Name

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/0jfzz9q992957b99t…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/06/11/4

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache CXF	Affected: 4.2.0 , < 4.2.2 (semver) Affected: 0 , < 4.1.7 (semver)

Credits

Guanping Zhang reported this vulnerability.

Show details on NVD website

JSON

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    "cna": {
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          "collectionURL": "https://repo.maven.apache.org/maven2",
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          "packageName": "org.apache.cxf:cxf-rt-rs-security-oauth2",
          "product": "Apache CXF",
          "vendor": "Apache Software Foundation",
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              "version": "4.2.0",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-9MRV-8PVF-HF4M

CVE-2026-50627 (GCVE-0-2026-50627)

Tags

Sightings

Nomenclature