What is CVE-2026-41372?

CVE-2026-41372 is a medium-severity vulnerability in Openclaw, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.8/10. Published 2026-04-28.

How severe is CVE-2026-41372?

Medium severity. CVSS v3 base score is 5.8 out of 10.

Auth bypass in Openclaw

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 authentic…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (13.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N.

Affected products

Openclaw — versions 0, 2026.4.2

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

GitHub Security Advisory (GHSA-fh32-73r9-rgh5) (vendor-advisory, Vendor Advisory)
Patch Commit (Patch, patch)
VulnCheck Advisory: OpenClaw < 2026.4.2 - Loopback Protection Bypass via Trailing-Dot Localhost in CDP Discovery (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-41372?: CVE-2026-41372 is a medium-severity vulnerability in Openclaw, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.8/10. Published 2026-04-28.
How severe is CVE-2026-41372?: Medium severity. CVSS v3 base score is 5.8 out of 10.