CVE-2026-50631
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Jun 12, 2026
Vendor
unknown
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, which fixes this issue.