CVE-2026-57818

Apache CXF: OAuth2 Authorization Code Replay via TOCTOU in JCacheCodeDataProvider

State: Published
Severity: 8.1 High
Published: Aug 6, 2026
Updated: Aug 7, 2026
Reserved: Jun 25, 2026

Description

A race condition in JCacheCodeDataProvider allows an attacker to redeem a single authorization code multiple times via concurrent requests, resulting in the issuance of multiple distinct, valid access tokens. Users are recommended to upgrade to versions 4.2.3, 4.1.8 or 3.6.12, which fix this issue.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Affected Products

Product	Versions
Apache CXFApache Software Foundation	4.2.0 to before 4.2.3Affected 4.0.0 to before 4.1.8Affected before 3.6.12Affected

References

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