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CVE-2026-50631

Apache CXF

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.

CVSS 7.4EPSS 0.294%Risk 0.76
View source
Published
2026-06-12 10:16:23
Affected versions
<4.2.2, <4.1.7
Type
Library
Last modified
2026-08-07 13:16:51
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N