Auth bypass in Openclaw
CVE-2026-43575
OpenClaw versions 2026.2.21 before 2026.4.10 contain an authentication bypass vulnerability in the sandbox noVNC helper route that exposes interactive browser session credentials. Attackers can access the noVNC helper route without bridge authentication to gain unauthorized access to the interactive browser session.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (53.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.008 · change: +0.004
Affected products
- Openclaw — versions 2026.2.21, 2026.4.10
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/commit/8dfbf3268bd224b7377d1ecca77a445100746085 (Patch, patch)
- github.com/openclaw/openclaw/security/advisories/GHSA-92jp-89mq-4374 (vendor-advisory, Mitigation, Vendor Advisory)
- www.vulncheck.com/advisories/openclaw-authentication-bypass-in-sandbox-novnc-he… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-43575?
- CVE-2026-43575 is a critical-severity vulnerability in Openclaw, classified under Missing Authorization. CVSS score: 9.8/10. Published 2026-05-06.
- How severe is CVE-2026-43575?
- Critical severity. CVSS v3 base score is 9.8 out of 10.