CVE-2026-41393
OpenClaw < 2026.3.31 - Arbitrary DNS Authority Acceptance and Credential Exfiltration via Wide-Area Discovery
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.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
OpenClaw < 2026.3.31 - Arbitrary DNS Authority Acceptance and Credential Exfiltration via Wide-Area Discovery
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.
- Record
CVE-2026-41393- CVSS 4.0
- 5.9 Medium
CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-346
- Updated
- 2026-11-02
EUVDEUVD-2026-26101
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.
- Record
EUVD-2026-26101- CVSS 4.0
- 5.9 Medium
CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-q9w8-cf67-r238
OpenClaw: macOS Tailnet DNS Spoofing & Credential Exfiltration
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.
- Record
GHSA-q9w8-cf67-r238- CVSS 4.0
- 7.1 High
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 - Weakness
- CWE-346, CWE-350
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-41393- CVSS 4.0
- 5.9 Medium
CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N - CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-346
- Updated
- 2026-11-02
OSV
OpenClaw < 2026.3.31 - Arbitrary DNS Authority Acceptance and Credential Exfiltration via Wide-Area Discovery
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.
- Record
CVE-2026-41393- CVSS 4.0
- 5.9 Medium
CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-346
- Updated
- 2026-11-02
OSVGHSA-q9w8-cf67-r238
OpenClaw: macOS Tailnet DNS Spoofing & Credential Exfiltration
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.
- Record
GHSA-q9w8-cf67-r238- CVSS 4.0
- 7.1 High
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 - Weakness
- CWE-346, CWE-350
- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-41393 is a medium vulnerability (CVSS 5.9) in Openclaw, published April 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 1st percentile. Fixed in openclaw 2026.3.31.
References
github.com/openclaw/openclaw/security/advisories/GHSA-q9w8-cf67-r238
vulncheck.com/advisories/openclaw-arbitrary-dns-authority-acceptance-and-credential-exfiltration-via-wide-area-discovery
nvd.nist.gov/vuln/detail/CVE-2026-41393