CVE-2026-50631
High · 7.4CVSS
7.4
EPSS
0.4%
Published
Jun 12, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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