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.

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 rotat…

EPSS: 0.002 (8.5th percentile) — read the EPSS interpretation.

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.

Affected products

Openclaw — versions 0, 2026.3.31

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

disclosure@vulncheck.com (vendor-advisory, Vendor Advisory)
disclosure@vulncheck.com (Patch, patch)
disclosure@vulncheck.com (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.