Vulnerability in Openclaw
CVE-2026-41393
OpenClaw before 2026.3.31 contains a wide-area discovery vulnerability allowing arbitrary tailnet peers to be accepted as DNS authorities. Attackers with same-tailnet position and CA-trusted endpoint access can exfiltrate operator credentials through DNS steering manipulation.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (4.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.3% 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: +0.000
Affected products
- Openclaw — versions 0, 2026.3.31
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-q9w8-cf67-r238 (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/commit/a23c33a681f8c1b22dc793995acc4c5c4b568346 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-arbitrary-dns-authority-acceptance-and-cr… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-41393?
- CVE-2026-41393 is a medium-severity vulnerability in Openclaw, classified under Origin Validation Error. CVSS score: 4.8/10. Published 2026-04-28.
- How severe is CVE-2026-41393?
- Medium severity. CVSS v3 base score is 4.8 out of 10.