CVE-2026-41372

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

State: Published
Severity: 6.9 Medium
Published: Apr 27, 2026
Updated: Apr 28, 2026
Reserved: Apr 20, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N	VulnCheck
3.1	5.8 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N	VulnCheck

Weaknesses

CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

Product	Versions
OpenClawOpenClaw	before 2026.4.2Affected 2026.4.2Not affected

References

GitHub Security Advisory (GHSA-fh32-73r9-rgh5)vendor-advisory
Patch Commitpatch
VulnCheck Advisory: OpenClaw < 2026.4.2 - Loopback Protection Bypass via Trailing-Dot Localhost in CDP Discoverythird-party-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.