What is CVE-2026-41398?

CVE-2026-41398 is a medium-severity vulnerability in Openclaw, classified under Origin Validation Error. CVSS score: 4.6/10. Published 2026-04-28.

How severe is CVE-2026-41398?

Medium severity. CVSS v3 base score is 4.6 out of 10.

Vulnerability in Openclaw

CVE-2026-41398

OpenClaw before 2026.4.2 contains an improper access control vulnerability in the iOS A2UI bridge that treats generic local-network pages as trusted origins. Attackers can inject unauthorized agent.request runs by loading attacker-controll…

EPSS: 0.000 (0.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L.

Affected products

Openclaw — versions 0, 2026.4.2

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

GitHub Security Advisory (GHSA-4p4f-fc8q-84m3) (vendor-advisory, Patch, Vendor Advisory)
Patch Commit (Patch, patch)
VulnCheck Advisory: OpenClaw - Unauthorized Agent Request Dispatch via Untrusted Local-Network Pages in iOS A2UI Bridge (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-41398?: CVE-2026-41398 is a medium-severity vulnerability in Openclaw, classified under Origin Validation Error. CVSS score: 4.6/10. Published 2026-04-28.
How severe is CVE-2026-41398?: Medium severity. CVSS v3 base score is 4.6 out of 10.