CVE-2026-42421

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5	Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-5h3f-885m-v22w	Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-websocket-session-persistence-via-shared-gateway-token-rotation	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

History

30 Apr 2026, 14:04

Type	Values Removed	Values Added
CPE		cpe:2.3:a:openclaw:openclaw::::::node.js::*
First Time		Openclaw openclaw Openclaw
References	~~() https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5 -~~	() https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5 - Patch
References	~~() https://github.com/openclaw/openclaw/security/advisories/GHSA-5h3f-885m-v22w -~~	() https://github.com/openclaw/openclaw/security/advisories/GHSA-5h3f-885m-v22w - Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/openclaw-websocket-session-persistence-via-shared-gateway-token-rotation -~~	() https://www.vulncheck.com/advisories/openclaw-websocket-session-persistence-via-shared-gateway-token-rotation - Third Party Advisory

28 Apr 2026, 19:37

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-28 19:37

Updated : 2026-04-30 14:04

NVD link : CVE-2026-42421

Mitre link : CVE-2026-42421

CVE.ORG link : CVE-2026-42421

JSON object : View

Products Affected

openclaw

openclaw

CWE

CWE-613

Insufficient Session Expiration

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