CVE-2026-41372

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.

Score

CVSS 4.0 6.9 Medium

Status

Analyzed - disclosure@vulncheck.com

Published

2026-04-28

Last modified

2026-04-28

Weaknesses

CWE-639

Affected products

• Openclaw (Openclaw)

References

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