CVE-2026-42421

Medium

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.

SeverityMedium

CVSS5.4

Exploit probability—

ProductOpenclaw

PublishedApr 28, 2026

First seenApr 28, 2026

Weakness typeCWE-613CWE-613

How to fix

Update

openclaw openclaw2026.4.8 or later
openclaw2026.4.8 or later

Patches

github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5

Vendor advisories

github.com/openclaw/openclaw/security/advisories/GHSA-5h3f-885m-v22w

Affected products

Product	Affected versions	Fixed in
openclaw openclaw	v < 2026.4.8	2026.4.8
openclawnpm	v < 2026.4.8	2026.4.8

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