Medium severity4.8NVD Advisory· Published Jun 9, 2026· Updated Jun 11, 2026
CVE-2026-41838
CVE-2026-41838
Description
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.springframework:spring-websocketMaven | >= 7.0.0, < 7.0.8 | 7.0.8 |
org.springframework:spring-websocketMaven | >= 6.2.0, < 6.2.19 | 6.2.19 |
org.springframework:spring-websocketMaven | >= 6.1.0, <= 6.1.27 | — |
org.springframework:spring-websocketMaven | <= 5.3.48 | — |
Affected products
2- Range: <=5.3.48, <=6.1.27, <=6.2.18, <=7.0.7
Patches
Vulnerability mechanics
References
8- github.com/advisories/GHSA-q723-847q-5g8gghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-41838ghsaADVISORY
- spring.io/security/cve-2026-41838nvdVendor AdvisoryWEB
- github.com/spring-projects/spring-framework/commit/a42a6e0c6ac64eb18954729ca5e3fe64b05a39b5ghsaWEB
- github.com/spring-projects/spring-framework/commit/bff98999056fc29b573ff47ad2433462eb52833cghsaWEB
- github.com/spring-projects/spring-framework/issues/36740ghsaWEB
- github.com/spring-projects/spring-framework/releases/tag/v6.2.19ghsaWEB
- github.com/spring-projects/spring-framework/releases/tag/v7.0.8ghsaWEB
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