CVEvulnerability
CVE-2026-50631
7.4 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-06-12
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-367
Description
A race condition in AbstractOAuthDataProvider allows concurrent requests using the same Refresh Token to bypass single-use semantics and generate multiple valid Access Tokens, when 'recycleRefreshTokens' is set to false. A leaked refresh token can be replayed concurrently by multiple attackers or threads. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.
Affected configurations
• apache cxf (< 4.1.7)
• apache cxf (>= 4.2.0 < 4.2.2)
Related
Weakness · CWE (1)
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition weakness
References
- https://lists.apache.org/thread/s83t3x4r626o9h8rt0ryr1w7w53l1vv8 Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/06/11/8 Mailing List, Third Party Advisory