CVE-2026-42421

OpenClaw < 2026.4.8 - WebSocket Session Persistence via Shared Gateway Token Rotation

State: Published
Severity: 2.3 Low
Published: Apr 28, 2026
Updated: Apr 29, 2026
Reserved: Apr 27, 2026

Description

OpenClaw before 2026.4.8 contains a session management vulnerability where existing WebSocket sessions survive shared gateway token rotation. Attackers can maintain unauthorized access to WebSocket connections after token rotation by exploiting the failure to disconnect existing shared-token sessions.

Scores

CVSS	Score	Vector	Source
4.0	2.3 Low	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N	VulnCheck

Weaknesses

CWE-613 Insufficient Session Expiration

Affected Products

Product	Versions
OpenClawOpenClaw	before 2026.4.8Affected 2026.4.8Not affected

References

GitHub Security Advisory (GHSA-5h3f-885m-v22w)vendor-advisory
Patch Commitpatch
VulnCheck Advisory: OpenClaw < 2026.4.8 - WebSocket Session Persistence via Shared Gateway Token Rotationthird-party-advisory

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