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.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-5h3f-885m-v22w OpenClaw: Existing WS sessions survive shared gateway token rotation
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 30 Apr 2026 02:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 28 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
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.
Title OpenClaw < 2026.4.8 - WebSocket Session Persistence via Shared Gateway Token Rotation
First Time appeared Openclaw
Openclaw openclaw
Weaknesses CWE-613
CPEs cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Vendors & Products Openclaw
Openclaw openclaw
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 2.3, '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-29T12:15:24.542Z

Reserved: 2026-04-27T11:38:59.195Z

Link: CVE-2026-42421

cve-icon Vulnrichment

Updated: 2026-04-29T12:15:19.930Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-28T19:37:45.820

Modified: 2026-04-30T14:04:08.987

Link: CVE-2026-42421

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-28T23:00:13Z

Weaknesses