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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.

PUBLISHED Reserved 2026-04-22 | Published 2026-06-09 | Updated 2026-06-09 | Assigner vmware




MEDIUM: 4.8CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

Problem types

CWE-330: Use of Insufficiently Random Values

Product status

Default status
unaffected

7.0.0 (custom) before 7.0.8
affected

6.2.0 (custom) before 6.2.19
affected

6.1.0 (custom) before 6.1.28
affected

5.3.0 (custom) before 5.3.49
affected

References

spring.io/security/cve-2026-41838

cve.org (CVE-2026-41838)

nvd.nist.gov (CVE-2026-41838)

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