Vulnerability in Openclaw
CVE-2026-41356
OpenClaw before 2026.3.31 fails to terminate active WebSocket sessions when rotating device tokens. Attackers with previously compromised credentials can maintain unauthorized access through existing WebSocket connections after token rotation.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (22.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Openclaw — versions 0, 2026.3.31
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-rfqg-qgf8-xr9x (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/commit/91f7a6b0fd67b703897e6e307762d471ca09333d (Patch, patch)
- www.vulncheck.com/advisories/openclaw-incomplete-websocket-session-termination-… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-41356?
- CVE-2026-41356 is a medium-severity vulnerability in Openclaw, classified under Insufficient Session Expiration. CVSS score: 5.4/10. Published 2026-04-23.
- How severe is CVE-2026-41356?
- Medium severity. CVSS v3 base score is 5.4 out of 10.