Vulnerability Report

CVE-2026-35643

RCE

Title: Unvalidated WebView JavascriptInterface

RCE

Proof Of Concept

No public PoC currently indexed for CVE-2026-35643.

CWE Category CWE-940

Published Date Apr 10, 2026

Modified Date Apr 13, 2026

Exploit Status Not Found

Score 8.6 CVSS v4.0

Exploit Probability (EPSS)

0.37%

Vulnerability Summary

CVE-2026-35643: 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.

Impacted Vendors

openclaw 1

Reference Links

https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87 https://github.com/openclaw/openclaw/commit/8b02ef133275be96d8aac2283100016c8a7f32e5 https://github.com/openclaw/openclaw/security/advisories/GHSA-cxmw-p77q-wchg https://www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-unvalidated-webview-javascriptinterface

CVSS v4.0

Source Entity [email protected]

Severity HIGH

8.6

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

ACTIVE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

N/A

RAW 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

CVSS v3.1

Source Entity [email protected]

Severity HIGH

8.8

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns