What is CVE-2026-41329?

CVE-2026-41329 is a critical-severity vulnerability in Openclaw, classified under CWE-648. CVSS score: 9.9/10. Published 2026-04-20.

How severe is CVE-2026-41329?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Vulnerability in Openclaw

CVE-2026-41329

OpenClaw before 2026.3.31 contains a sandbox bypass vulnerability allowing attackers to escalate privileges via heartbeat context inheritance and senderIsOwner parameter manipulation. Attackers can exploit improper context validation to by…

EPSS: 0.001 (16.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Openclaw — versions 0, 2026.3.31

Weakness classification (CWE)

CWE-648

References

GitHub Security Advisory (GHSA-g5cg-8x5w-7jpm) (vendor-advisory)
Patch Commit (patch)
VulnCheck Advisory: OpenClaw < 2026.3.31 - Sandbox Bypass via Heartbeat Context Inheritance and senderIsOwner Escalation (third-party-advisory)

Frequently asked questions

What is CVE-2026-41329?: CVE-2026-41329 is a critical-severity vulnerability in Openclaw, classified under CWE-648. CVSS score: 9.9/10. Published 2026-04-20.
How severe is CVE-2026-41329?: Critical severity. CVSS v3 base score is 9.9 out of 10.