CVE-2026-41838: Spring Framework Predictable Session ID in WebSocket Module
(updated )
IDs for WebSocket sessions in the spring-websocket module are not cryptographically unpredictable, which may be possible to exploit in combination with inadequate authorization rules.
Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.
References
- github.com/advisories/GHSA-q723-847q-5g8g
- github.com/spring-projects/spring-framework/commit/a42a6e0c6ac64eb18954729ca5e3fe64b05a39b5
- github.com/spring-projects/spring-framework/commit/bff98999056fc29b573ff47ad2433462eb52833c
- github.com/spring-projects/spring-framework/issues/36740
- github.com/spring-projects/spring-framework/releases/tag/v6.2.19
- github.com/spring-projects/spring-framework/releases/tag/v7.0.8
- nvd.nist.gov/vuln/detail/CVE-2026-41838
- spring.io/security/cve-2026-41838
Code Behaviors & Features
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