Home/CVE/OpenClaw before 2026.3.22 contains an unvalidated WebView JavascriptInterface vulnerability allowing attackers to inject
CVE

CVE-2026-35643

OpenClaw before 2026.3.22 contains an unvalidated WebView JavascriptInterface vulnerability allowing attackers to inject

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.

HIGH · CVSS 8.8 EPSS 0.00046
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-940Improper Verification of Source of a Communication Channel
▤

Affected Products & Versions

1
openclaw< 2026.3.22
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm openclaw HIGH fixed in 2026.3.22
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · disclosure@vulncheck.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Apr 2026 · 05:17 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87Patch
https://github.com/openclaw/openclaw/commit/8b02ef133275be96d8aac2283100016c8a7f32e5Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-cxmw-p77q-wchgVendor Advisory
https://www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-unvalidated-webview-javascriptinterfaceThird Party Advisory
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