Auth bypass in Openclaw
CVE-2026-43577
OpenClaw before 2026.4.9 contains a file read vulnerability allowing attackers to bypass navigation guards through browser act/evaluate interactions. Attackers can pivot into the local CDP origin and create or read disallowed file:// pages despite direct navigation policy restrictions.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.3% 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: 0.004 · change: +0.002
Affected products
- Openclaw — versions 0, 2026.4.9
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/commit/5f5b3d733bdd791cb457f838514179e1288b10b3 (Patch, patch)
- github.com/openclaw/openclaw/security/advisories/GHSA-qmwg-qprg-3j38 (vendor-advisory, Mitigation, Vendor Advisory)
- www.vulncheck.com/advisories/openclaw-arbitrary-file-read-via-browser-interacti… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-43577?
- CVE-2026-43577 is a medium-severity vulnerability in Openclaw, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-05-06.
- How severe is CVE-2026-43577?
- Medium severity. CVSS v3 base score is 6.5 out of 10.