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 bypass sandbox restrictions and achieve unauthorized privilege escalation.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (41.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Openclaw — versions 0, 2026.3.31
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-g5cg-8x5w-7jpm (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/commit/a30214a624946fc5c85c9558a27c1580172374fd (Patch, patch)
- www.vulncheck.com/advisories/openclaw-sandbox-bypass-via-heartbeat-context-inhe… (Third Party Advisory, 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 2026-04-21.
- How severe is CVE-2026-41329?
- Critical severity. CVSS v3 base score is 9.9 out of 10.