CVE-2026-41393: OpenClaw < 2026.3.31 - Arbitrary DNS Authority Acceptance and Credential Exfiltration via Wide-Area Discovery

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-28 · updated 2026-06-17
Weakness: CWE-346

Description

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.

Affected products

OpenClaw: before 2026.3.31 — fixed in 2026.3.31

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.31. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/commit/a23c33a681f8c1b22dc793995acc4c5c4b568346
https://github.com/openclaw/openclaw/security/advisories/GHSA-q9w8-cf67-r238
https://www.vulncheck.com/advisories/openclaw-arbitrary-dns-authority-acceptance-and-credential-exfiltration-via-wide-area-discovery

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