Vulnerability in Openclaw
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (43.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.002
Affected products
- Openclaw — versions 0, 2026.3.22
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-cxmw-p77q-wchg (vendor-advisory, Vendor Advisory, third-party-advisory)
- github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87 (Patch, patch)
- github.com/openclaw/openclaw/commit/8b02ef133275be96d8aac2283100016c8a7f32e5 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-unvalidated-… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-35643?
- CVE-2026-35643 is a high-severity vulnerability in Openclaw, classified under Improper Verification of Source of a Communication Channel. CVSS score: 8.8/10. Published 2026-04-10.
- How severe is CVE-2026-35643?
- High severity. CVSS v3 base score is 8.8 out of 10.