CVE-2026-41838

MEDIUM

Spring Framework Predictable Session ID in WebSocket Module

Title source: cna
STIX 2.1

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.

References (1)

Core 1

Scores

CVSS v3 4.8
EPSS 0.0017
EPSS Percentile 6.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-330
Status published
Products (11)
org.springframework/spring-websocket 0 - 5.3.48Maven
org.springframework/spring-websocket 6.1.0 - 6.1.27Maven
org.springframework/spring-websocket 6.2.0 - 6.2.19Maven
org.springframework/spring-websocket 7.0.0 - 7.0.8Maven
Spring/Spring Framework 5.3.0 - 5.3.49
Spring/Spring Framework 6.1.0 - 6.1.28
Spring/Spring Framework 6.2.0 - 6.2.18.1
Spring/Spring Framework 6.2.0 - 6.2.19
Spring/Spring Framework 7.0.0 - 7.0.7.1
Spring/Spring Framework 7.0.0 - 7.0.8
... and 1 more
Published Jun 09, 2026
Tracked Since Jun 09, 2026