EUVD-2026-34372
GHSA-936p-3q7j-gg72
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
5DescriptionCVE.org
Use after free in WebAppInstalls in Google Chrome on Android prior to 149.0.7827.53 allowed a local attacker to execute arbitrary code via a malicious file. (Chromium security severity: High)
AnalysisAI
Arbitrary code execution in Google Chrome for Android prior to 149.0.7827.53 stems from a use-after-free flaw in the WebAppInstalls component, triggered when a victim opens a malicious file. Although the CVSS vector lists a network attack vector with high impact across confidentiality, integrity, and availability, exploitation requires user interaction and no public exploit identified at time of analysis. EPSS probability is very low (0.01%) and SSVC indicates no observed exploitation, suggesting the immediate threat is limited despite the High severity rating from Chromium.
Technical ContextAI
The flaw is a CWE-416 Use-After-Free in the WebAppInstalls subsystem of Chromium, which handles Progressive Web App (PWA) installation and management on Android. Use-after-free vulnerabilities occur when memory is freed while still being referenced, allowing an attacker to reclaim that memory with attacker-controlled data and hijack control flow when the dangling pointer is dereferenced. Because Chrome on Android uses a multi-process sandbox architecture, exploitation of a renderer-side UAF typically yields code execution within the sandboxed renderer or browser process tied to the WebAppInstalls path, and would normally need to be chained with a sandbox escape for full device compromise.
RemediationAI
Upgrade Google Chrome on Android to version 149.0.7827.53 or later, which is the vendor-released patch referenced in the Chrome Releases stable channel update at http://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html and tracked in Chromium issue https://issues.chromium.org/issues/499423683. On managed Android fleets, push the update via MDM or Google Play managed configurations to enforce the minimum version. Until the patched build rolls out, reduce exposure by disabling or restricting Progressive Web App installation prompts through enterprise policy (which removes PWA install functionality for users), avoiding opening untrusted files in the browser, and instructing users not to install PWAs or open links from unknown sources - the trade-off is reduced PWA usability for legitimate web apps.
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Same weakness CWE-416 – Use After Free
View allSame technique Memory Corruption
View allVendor StatusVendor
SUSE
Severity: High| Product | Status |
|---|---|
| openSUSE Tumbleweed | Fixed |
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External POC / Exploit Code
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