| Component | OpenClaw |
| Severity | medium (CVSS 5.4) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| Published (NVD) | 2026-04-28 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.4.8 |
| Fixed in | 2026.4.8 |
| Weakness | CWE-613 |
| CISA KEV | not listed |
NVD 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.
What to do
- Upgrade OpenClaw to
2026.4.8or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-42421
- https://github.com/openclaw/openclaw/security/advisories/GHSA-5h3f-885m-v22w
- https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5
- https://www.vulncheck.com/advisories/openclaw-websocket-session-persistence-via-shared-gateway-token-rotation
Read more
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