Which versions of Google are affected by EUVD-2026-21438?

OpenClaw Android application versions prior to 2026.3.22 contain a remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary code on user devices through…. A patch is available.

How to fix or mitigate EUVD-2026-21438?

Within 24 hours: Identify all OpenClaw Android installations in your environment and document versions in use. Within 7 days: Deploy OpenClaw version 2026.3.22 or later to all affected users through your mobile device management (MDM) platform, prioritizing devices in high-risk user roles. Within 30 days: Verify 100% deployment completion and confirm no devices remain on vulnerable versions through MDM compliance reporting.

Google EUVD-2026-21438

Q: What is the CVSS score of EUVD-2026-21438?

EUVD-2026-21438 has a CVSS 4.0 base score of 8.6 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/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:X. EPSS exploitation probability: 0.0%.

| CVE-2026-35643 HIGH

Improper Verification of Source of a Communication Channel (CWE-940)

2026-04-10 VulnCheck

GHSA-cxmw-p77q-wchg

RCE Google

8.6

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

8.6 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/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:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/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:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Scope

Lifecycle Timeline

EUVD ID Assigned

Apr 10, 2026 - 16:30 euvd

EUVD-2026-21438

Analysis Generated

Apr 10, 2026 - 16:30 vuln.today

Patch released

Apr 10, 2026 - 16:30 nvd

Patch available

CVE Published

Apr 10, 2026 - 16:03 nvd

HIGH 8.6

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

5 npm packages depend on openclaw (5 direct, 0 indirect)

Ecosystem-wide dependent count for version 2026.3.22.

DescriptionCVE.org

OpenClaw before 2026.3.22 contains an unvalidated WebView JavascriptInterface vulnerability allowing attackers to inject arbitrary instructions. Untrusted pages can invoke the canvas bridge to execute malicious code within the Android application context.

AnalysisAI

Remote code execution in OpenClaw Android application (versions before 2026.3.22) allows unauthenticated attackers to execute arbitrary code through an unvalidated WebView JavascriptInterface. Attackers craft malicious web pages that invoke the exposed canvas bridge, executing instructions within the application's Android context when users interact with untrusted content. The vulnerability requires user interaction but no authentication, enabling high-severity compromise of confidentiality, integrity, and availability. No public exploit identified at time of analysis.

Technical ContextAI

CWE-940 flaw in Android WebView implementation exposes JavascriptInterface without proper origin validation. The canvas bridge interface accepts commands from any loaded webpage, bypassing Android's security boundary between web content and native application code. Affects cpe:2.3:a:openclaw:openclaw prior to 2026.3.22 release.

RemediationAI

Vendor-released patch: upgrade to OpenClaw version 2026.3.22 or later, which addresses the unvalidated JavascriptInterface exposure. The fix implements proper origin validation for WebView bridge methods and restricts JavaScript interface access to trusted content sources. Upstream commits 630f1479c44f78484dfa21bb407cbe6f171dac87 and 8b02ef133275be96d8aac2283100016c8a7f32e5 contain the security patches. Until upgrade is feasible, disable WebView functionality or restrict application usage to prevent loading untrusted web content. Consult vendor advisory: https://github.com/openclaw/openclaw/security/advisories/GHSA-cxmw-p77q-wchg and VulnCheck analysis: https://www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-unvalidated-webview-javascriptinterface for additional implementation guidance.