OpenClaw: macOS Tailnet DNS Spoofing & Credential Exfiltration

CVE-2026-41393 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

Summary

macOS Wide-Area Discovery Accepts Arbitrary Tailnet Peer as DNS Authority and Exfiltrates Operator Credentials

Current Maintainer Triage

  • Status: narrow
  • Normalized severity: medium
  • Assessment: Real shipped macOS discovery steering bug, but exploitation needs same-tailnet position, a CA-trusted endpoint, and user selection, so medium not high.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Latest published npm version: 2026.3.31
  • Vulnerable version range: <=2026.3.28
  • Patched versions: >= 2026.3.31
  • First stable tag containing the fix: v2026.3.31

Fix Commit(s)

  • a23c33a681f8c1b22dc793995acc4c5c4b568346 — 2026-03-31T10:04:11+01:00

OpenClaw thanks @nexrin for reporting.

Basic information

Type
reviewed
Severity
high
Advisory on GitHub
Open advisory ↗
Repository advisory
Open repository advisory ↗
Source code
Browse source ↗
Published (advisory)
2026-04-03 03:22:32 UTC
Updated
2026-04-28 18:20:32 UTC
GitHub reviewed
2026-04-03 03:22:32 UTC

EPSS Score

Score Percentile
0.01% 0.43%

CVSS Scores

Base score Version Severity Vector
7.1 4.0 —
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Click to expand
Attack vector (AV:A)
Attacker has to be on an adjacent/local network segment.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:N)
No privileges are required.
User interaction (UI:N)
No user interaction is required.
Vulnerable system confidentiality impact (VC:H)
High confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:N)
No integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:N)
No availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:N)
No confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:N)
No integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.

Identifiers

Type Value
GHSA GHSA-q9w8-cf67-r238 ↗
CVE CVE-2026-41393 ↗

CWEs

CWE id Name
CWE-346 Origin Validation Error
CWE-350 Reliance on Reverse DNS Resolution for a Security-Critical Action

Credits

  • nexrin (reporter)
  • KeenSecurityLab (sponsor)
  • qclawer (sponsor)

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
npm openclaw <= 2026.3.28 2026.3.31 —

References

cvelogic Threat Intelligence