Spring Framework Predictable Session ID in WebSocket Module
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.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-41838US | high7.5OT elevated | — | ||
IDs for WebSocket sessions in the spring-websocket module are not cryptographically unpredictable, which may be possible to exploit in combination with inadequate authorization rul… | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/spring-projects/spring-frameworkPACKAGE
- https://github.com/spring-projects/spring-framework/commit/a42a6e0c6ac64eb18954729ca5e3fe64b05a39b5WEB
- https://github.com/spring-projects/spring-framework/commit/bff98999056fc29b573ff47ad2433462eb52833cWEB
- https://github.com/spring-projects/spring-framework/issues/36740WEB
- https://github.com/spring-projects/spring-framework/releases/tag/v6.2.19WEB
- https://github.com/spring-projects/spring-framework/releases/tag/v7.0.8WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-41838ADVISORY
- https://spring.io/security/cve-2026-41838WEB
scry
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