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CVE-2026-41372

OpenClaw < 2026.4.2 - Loopback Protection Bypass via Trailing-Dot Localhost in CDP Discovery

Published: Apr 27, 2026Updated: Apr 27, 2026 Sources: CVE List
NVD MITRE
5.8CVSS
MEDIUM

OpenClaw before 2026.4.2 fails to normalize trailing-dot localhost hosts in remote CDP discovery responses, allowing bypass of loopback protections. Attackers can craft hostile discovery responses returning localhost. to retarget authenticated browser control toward localhost endpoints and expose browser state.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None

Weaknesses

CWE-639CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

OpenClaw
OpenClaw

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-fh32-73r9-rgh5
github.com
https://github.com/openclaw/openclaw/commit/9c22d636697336a6b22b0ae24798d8b8325d7828
github.com
https://www.vulncheck.com/advisories/openclaw-loopback-protection-bypass-via-trailing-dot-localhost-in-cdp-discovery
vulncheck.com

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