CVE-2026-34503: OpenClaw < 2026.3.28 - Incomplete WebSocket Session Termination on Device Removal and Token Revocation

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-31 · updated 2026-07-24
Weakness: CWE-613

Description

OpenClaw before 2026.3.28 fails to disconnect active WebSocket sessions when devices are removed or tokens are revoked. Attackers with revoked credentials can maintain unauthorized access through existing live sessions until forced reconnection.

Affected products

OpenClaw: before 2026.3.28 — fixed in 2026.3.28

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.28. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/commit/7a801cc451e9e667b705eeccff651923a1b8c863
https://github.com/openclaw/openclaw/security/advisories/GHSA-2pr2-hcv6-7gwv
https://www.vulncheck.com/advisories/openclaw-incomplete-websocket-session-termination-on-device-removal-and-token-revocation

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