Google has pushed out an emergency update for Chrome on Android, stamping out a dangerous vulnerability in the platform’s WebView component. The fix, delivered in version 150.0.7871.47, targets CVE-2026-13924, a flaw that could allow a remote attacker to break out of the browser’s protective sandbox. If you own an Android phone or tablet, this is one update you can’t afford to postpone.

What exactly changed?

On [date not disclosed], Google released Chrome for Android 150.0.7871.47 to the stable channel. The update’s sole security highlight is a patch for CVE-2026-13924. The vulnerability resides in WebView, the system component that renders web content inside apps. Google’s description pinpoints “insufficient validation of untrusted input in WebView” as the root cause. In typical Google fashion, most technical details remain under wraps to give users time to patch before attackers can reverse-engineer the bug.

What we do know paints a chilling picture: a remote attacker who has already compromised some part of the system—the advisory cuts off after “had already comp…”, but such phrasing commonly points to a compromised renderer process—could leverage this flaw for a sandbox escape. In other words, an attacker would first need to find or exploit a separate code execution bug within WebView’s rendering engine, and then use CVE-2026-13924 to break free from Chrome’s security confines and run arbitrary code on the device. The vulnerability is rated high severity; Google has not said whether it’s actively being exploited in the wild.

What this means for you

WebView isn’t just Chrome. It’s embedded in countless Android apps—social media clients, email apps, news readers—anywhere an app displays web content without launching a separate browser. That means the attack surface stretches far beyond users who tap the Chrome icon. Even if you never open Chrome, a malicious website loaded inside another app could trigger the flaw.

For everyday Android users, the risk is significant. A successful sandbox escape hands an attacker the keys to far more than your browsing session; they could potentially access personal files, install malware, or monitor your activity. The silver lining is that Google has seen no public reports of active exploitation—yet.

IT professionals and enterprise administrators face a more urgent timeline. Managed devices, especially those in BYOD programs, often run older or delayed versions of Android system components. A vulnerability that can be triggered through widely-used apps means a single unpatched device could become an entry point into corporate resources. The fix arrived via Chrome and the Android System WebView app, both updateable through the Play Store independent of full OS updates, but admins still need to verify that every device in the fleet receives the patch.

How we got here

WebView has a long and turbulent security history. For years, updating WebView required a full Android system update, leaving millions of devices vulnerable for months. Google decoupled WebView from the OS in Android 5.0, and since Android 7.0, Chrome has served as the WebView implementation on most devices. Still, vulnerabilities keep cropping up. Just in 2026, we’ve seen multiple WebView-related CVEs, including CVE-2026-13924 and earlier flaws patched in Chrome 149 that allowed code execution through Intents (CVE-2026-12954, CVE-2026-12955).

The pattern is familiar: attackers target WebView because it processes untrusted web content by design. Even with Chrome’s site isolation and sandboxing, parsing HTML, JavaScript, and CSS is complex enough that input validation bugs can slip through. CVE-2026-13924 fits a class of vulnerabilities where the browser fails to properly sanitize data moving between the sandboxed renderer and the wider OS—exactly the kind of flaw that nation-state actors and sophisticated cybercriminals love to chain with other exploits.

Google has not linked this CVE to any specific bug bounty report or disclosed the researcher’s name, which is standard when internal discovery or active exploit concerns dictate silence.

What to do now

For most users, the fix is straightforward:

  1. Update Chrome — Open the Play Store, search for Google Chrome, and tap “Update” if available. Check that the version number reads 150.0.7871.47 or higher.
  2. Update Android System WebView — In the Play Store, search for “Android System WebView” and update it as well. This covers cases where apps use WebView without launching Chrome.
  3. Restart your device — After updating both components, a quick reboot ensures all active processes pick up the patched versions.
  4. Verify your version — In Chrome, navigate to chrome://version and look for the “Application version” string. It should start with 150.0.7871.47.

Enterprise admins should take additional steps:

  • Use your mobile device management (MDM) platform to force an immediate update of Chrome and Android System WebView on all managed Android profiles.
  • Check for any internally developed apps that embed WebView; ensure they’re tested with the updated component.
  • Monitor Google’s official Chrome Releases blog and Android Security Bulletins for any late-breaking news about active exploitation.

If you cannot update immediately, you can reduce risk by avoiding untrusted links, especially in apps that load web content. Enable Google Play Protect and keep it active. Remember, however, that applying the patch is the only reliable defense.

Outlook

Google typically waits a few days to a week before publishing more detailed technical analysis on critical Chrome vulnerabilities, giving the update time to propagate. Expect a public write-up that clarifies whether the attacker needs a separate renderer compromise—a likely prerequisite given the phrasing—and whether the bug was exploited in the wild. Meanwhile, security researchers will undoubtedly race to reproduce the flaw now that the patch is available, which could trigger proof-of-concept code within days. That’s all the more reason to update your Android device right now.

For now, the patch is rolling out via Google Play. If you haven’t received it yet, keep checking back—the rollout is typically staged but should reach all devices within 24 hours. This is one security update you don’t want to sit out.