CVE-2026-41398 | THREATINT

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.

PUBLISHED Reserved 2026-04-20 | Published 2026-04-28 | Updated 2026-04-29 | Assigner VulnCheck

LOW: 2.1CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

MEDIUM: 4.6CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

Problem types

CWE-346: Origin Validation Error

Product status

Default status

unaffected

Any version before 2026.4.2

affected

2026.4.2 (semver)

unaffected

Credits

Nathan (@nexrin) reporter

KeenSecurityLab finder

qclawer finder

References

github.com/...enclaw/security/advisories/GHSA-4p4f-fc8q-84m3 (GitHub Security Advisory (GHSA-4p4f-fc8q-84m3)) vendor-advisory

github.com/...ommit/49d08382a90f71dabe2877b3f6729ad85f808d57 (Patch Commit) patch

www.vulncheck.com/...-local-network-pages-in-ios-a2ui-bridge (VulnCheck Advisory: OpenClaw - Unauthorized Agent Request Dispatch via Untrusted Local-Network Pages in iOS A2UI Bridge) third-party-advisory

cve.org (CVE-2026-41398)

nvd.nist.gov (CVE-2026-41398)

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