Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Remote crafted page (AV:N, PR:N) but needs specific victim UI gestures and non-trivial conditions (UI:R, AC:H); RCE yields full C/I/A impact within the browser (S:U).
Primary rating from Vendor (google).
CVSS VectorVendor: google
Lifecycle Timeline
4DescriptionCVE.org
Insufficient validation of untrusted input in WebAppInstalls in Google Chrome on Windows prior to 150.0.7871.47 allowed a remote attacker who convinced a user to engage in specific UI gestures to execute arbitrary code via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Remote code execution in Google Chrome on Windows before version 150.0.7871.47 allows an attacker to run arbitrary code by luring a victim to a crafted HTML page and getting them to perform specific UI gestures against the WebAppInstalls component. Chromium rates the flaw High severity; no public exploit identified at time of analysis, and the EPSS probability is low (0.26%, 17th percentile), indicating the attack is not yet broadly commoditized despite the serious impact.
Technical ContextAI
The defect lives in Chrome's WebAppInstalls subsystem, the browser machinery that handles Progressive Web App / web app installation flows on Windows. Per CWE-20 (Improper Input Validation), the root cause is insufficient validation of untrusted input reaching this component from web content, which lets a malicious page steer the install-related UI/logic into an unsafe state that ultimately yields code execution in the browser process. Because the trigger is a crafted HTML page combined with user-driven UI gestures, the untrusted input crosses the renderer/browser boundary through the install workflow rather than through a memory-corruption parser bug alone. The affected code is Windows-specific to this CVE, and the fix ships in the Chromium stable channel at 150.0.7871.47.
RemediationAI
Vendor-released patch: upgrade Google Chrome on Windows to 150.0.7871.47 or later via the Chrome Releases stable-channel update (https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html); most environments should confirm auto-update completed and relaunch the browser to apply the fix, since Chrome updates only take effect after restart. Enterprises managing Chrome via policy should push the updated version and verify the reported build across the fleet. Until the update is deployed, reduce exposure by user-awareness guidance to avoid unfamiliar sites prompting for install/UI gestures and, where PWA installation is not needed, disable web app installation via the WebAppInstallForceList/BlockExternalExtensions-style management policies - the trade-off is loss of PWA install functionality for users who rely on it. No standalone workaround is a substitute for the patch, which is the primary and recommended remediation.
Same weakness CWE-20 – Improper Input Validation
View allVendor StatusVendor
SUSE
Severity: Important| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-40480
GHSA-f556-8c4p-xcw9