CVE-2026-41398: OpenClaw - Unauthorized Agent Request Dispatch via Untrusted Local-Network Pages in iOS A2UI Bridge

Severity: medium (CVSS 4.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-28 · updated 2026-06-17
Weakness: CWE-346

Description

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-controlled pages from local-network or tailnet hosts, polluting session state and consuming budget.

Affected products

OpenClaw: before 2026.4.2 — fixed in 2026.4.2

How to fix

Upgrade to a fixed version: OpenClaw 2026.4.2. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/commit/49d08382a90f71dabe2877b3f6729ad85f808d57
https://github.com/openclaw/openclaw/security/advisories/GHSA-4p4f-fc8q-84m3
https://www.vulncheck.com/advisories/openclaw-unauthorized-agent-request-dispatch-via-untrusted-local-network-pages-in-ios-a2ui-bridge

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