CVE-2026-41398

mediumpriority · track · 0EPSS 0.001 · 1 %ileDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.11% (1st) EPSS
CVSS 4.6 · medium
Is it mine?
5 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

4.6
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 0.5–4.6

v3.14.6mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:Lsecondary · disclosure@vulncheck.comexploitability 2.1 · impact 2.5
v4.02.1lowCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.02.1lowCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · disclosure@vulncheck.com
v4.00.5lowCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284USCWE-346US
03

affected products (5)

Products and version ranges known to be affected.

04

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-0980OpenClaw: Mehrere SchwachstellenDeutsch2026-04-06csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in OpenClaw ausnutzen, um Daten zu manipulieren, Sicherheitsmechanismen zu umgehen oder einen Denial-of-Service-Zustand zu erzeugen..

  • GHSA-4p4f-fc8q-84m3OpenClaw: iOS A2UI bridge trusted generic local-network pages for agent.request dispatch2026-04-07ghsa · osvUS

    ## Summary Before OpenClaw 2026.4.2, the iOS A2UI bridge treated generic local-network pages as trusted bridge origins. A page loaded from a local-network or tailnet host could trigger agent.request dispatch without the stricter trusted-canvas origin check. ## Impact A loaded attacker-controlled page could inject unauthorized non-owner agent.request runs into the active iOS node session, polluting session state and consuming budget. The demonstrated impact did not include owner-only actions or arbitrary host execution. ## Affected Packages / Versions - Package: openclaw (npm) - Affected versions: <= 2026.4.1 - Patched versions: >= 2026.4.2 - Latest published npm version: 2026.4.1 ## Fix Commit(s) 49d08382a90f71dabe2877b3f6729ad85f808d57 — restrict A2UI action dispatch to trusted canvas URLs ## Release Process Note The fix is present on main and is staged for OpenClaw 2026.4.2. Publish this advisory after the 2026.4.2 npm release is live. Thanks [@nexrin](https://github.com/nexrin) for reporting.

05

also known as (2)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcert_bundnvdosvNVDCVE.orgMITRE
published 2026-04-28modified 2026-06-17
07

references (8)

External citations — patches, advisories, analysis.

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