SpringSec TOCTOU Race JdbcOneTimeTokenSrv v6.4.0-6.4.15/6.5.0-6.5.9/7.0.0-7.0.4
CVE-2026-22751 Published on April 21, 2026
Spring Security JdbcOneTimeTokenService allows a one-time token to authenticate multiple sessions
Vulnerability in Spring Spring Security. Applications that explicitly configure One-Time Token login with JdbcOneTimeTokenService are vulnerable to a Time-of-check Time-of-use (TOCTOU) race condition. This issue affects Spring Security: from 6.4.0 through 6.4.15, from 6.5.0 through 6.5.9, from 7.0.0 through 7.0.4.
Vulnerability Analysis
CVE-2026-22751 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a TOCTTOU Vulnerability?
The software checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the software to perform invalid actions when the resource is in an unexpected state. This weakness can be security-relevant when an attacker can influence the state of the resource between check and use. This can happen with shared resources such as files, memory, or even variables in multithreaded programs.
CVE-2026-22751 has been classified to as a TOCTTOU vulnerability or weakness.
Products Associated with CVE-2026-22751
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Affected Versions
Spring Security:- Version 6.4.0, <= 6.4.15 is affected.
- Version 6.5.0, <= 6.5.9 is affected.
- Version 7.0.0, <= 7.0.4 is affected.