Fluid Attacks Database

Description

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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Component	Affected version	Patched versions
debian 11	libspring-java	=4.3.30-1 \|\| =4.3.30-2 \|\| =4.3.30-3 \|\| =4.3.30-4	-
debian 12	libspring-java	=4.3.30-2 \|\| =4.3.30-3 \|\| =4.3.30-4	-
debian 13	libspring-java	=4.3.30-3 \|\| =4.3.30-4	-
debian 14	libspring-java	=4.3.30-3 \|\| =4.3.30-4	-
maven	org.springframework:spring-websocket	>=7.0.0 <7.0.8 \|\| >=6.2.0 <6.2.19 \|\| >=6.1.0 <=6.1.27 \|\| >=0 <=5.3.48	7.0.8, 6.2.19

Aliases

1. CVE-2026-418382. NVD-2026-418383. OSV-DEBIAN-2026-418384. OSV-2026-418385. GCVE-2026-418386. SECURITY-TRACKER-CVE-2026-41838

References

1. https://github.com/spring-projects/spring-framework/issues/367402. https://github.com/spring-projects/spring-framework/commit/a42a6e0c6ac64eb18954729ca5e3fe64b05a39b53. https://github.com/spring-projects/spring-framework/commit/bff98999056fc29b573ff47ad2433462eb52833c4. https://github.com/spring-projects/spring-framework/releases/tag/v6.2.195. https://github.com/spring-projects/spring-framework/releases/tag/v7.0.86. https://spring.io/security/cve-2026-41838

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