Vulnerability in Openclaw
CVE-2026-35634
OpenClaw before 2026.3.23 contains an authentication bypass vulnerability in the Canvas gateway where authorizeCanvasRequest() unconditionally allows local-direct requests without validating bearer tokens or canvas capabilities. Attackers can send unauthenticated loopback HTTP and WebSocket requests to Canvas routes to bypass authentication and gain unauthorized access.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (9.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001
Affected products
- Openclaw — versions 0, 2026.3.23
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-6mqc-jqh6-x8fc (vendor-advisory, Vendor Advisory, third-party-advisory)
- github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87 (Patch, patch)
- github.com/openclaw/openclaw/commit/d5dc6b6573ae489bc7e5651090f4767b93537c9e (Patch, patch)
- www.vulncheck.com/advisories/openclaw-authentication-bypass-via-local-direct-re… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-35634?
- CVE-2026-35634 is a medium-severity vulnerability in Openclaw, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 5.1/10. Published 2026-04-09.
- How severe is CVE-2026-35634?
- Medium severity. CVSS v3 base score is 5.1 out of 10.