Vulnerability in Openclaw
CVE-2026-42423
OpenClaw before 2026.4.8 contains an approval-timeout fallback mechanism that bypasses strictInlineEval explicit-approval requirements on gateway and node exec hosts. Attackers can exploit this timeout fallback to execute inline eval commands that should require explicit user approval, circumventing the intended security boundary.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (46.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.4% 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: 0.006 · change: +0.003
Affected products
- Openclaw — versions 0, 2026.4.8
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-q2gc-xjqw-qp89 (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-strictinlineeval-approval-boundary-bypass… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-42423?
- CVE-2026-42423 is a high-severity vulnerability in Openclaw, classified under CWE-636. CVSS score: 7.5/10. Published 2026-04-28.
- How severe is CVE-2026-42423?
- High severity. CVSS v3 base score is 7.5 out of 10.