CVE-2026-42421 LOW

CVE-2026-42421: OpenClaw < 2026.4.8 - WebSocket Session Persistence via Shared Gateway Token Rotation

Vendor Openclaw
Product OpenClaw
Weakness CWE-613 · Insufficient session expiration
Published April 28, 2026
Last update April 29, 2026
View on NVD All CVEs

CVSS base score

2.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 28, 2026 CVE published
April 29, 2026 Record updated