# CVE-2026-87534: Google Chrome missing authorization in WebView on Android

Source: https://junglewise.ai/threats/cve-2026-87534-google-chrome-missing-authorization-in-webview-on-android  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-09. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-87534 · Severity: critical · CVSS 9.8 · Published 2026-09-09

Google Chrome's WebView component on Android contains a missing authorization flaw that allows remote attackers to bypass system access restrictions through social engineering and crafted network traffic. This vulnerability could enable unauthorized access to protected resources or functionality on affected devices.

Technologies: [Google Android](https://junglewise.ai/threats/technologies/android), [Google Chrome](https://junglewise.ai/threats/technologies/chrome). Vendors: [Google](https://junglewise.ai/threats/vendors/google).

## Quick answers

**Is CVE-2026-87534 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-87534 being exploited in the wild.

**How severe is CVE-2026-87534?** Critical severity, with a CVSS score of 9.8, published 9 September 2026.

**Which products and versions are affected?** Google Chrome prior to 153.0.8010.36 on Android.

**Is there a fix for CVE-2026-87534?** A patch was published on 2026-09-08: Chrome 153.0.8010.36 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-87534 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-87534?** Check whether you run Google Android or Google Chrome at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a missing authorization issue in WebView, a component of Google Chrome on Android. An attacker can bypass system access restrictions by leveraging social engineering tactics combined with specially crafted network traffic. The flaw affects Chrome versions prior to 153.0.8010.36. While the Chromium team assessed this as Medium severity, the attack vector is network-based and exploits improper authorization controls, allowing an attacker to circumvent intended access controls without requiring special privileges.

## Affected products

- Google Chrome prior to 153.0.8010.36 on Android

## Timeline

- 2026-09-09: disclosed
- 2026-09-08: patched: Chrome 153.0.8010.36 released

## References

- [https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html](https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html)
- [https://issues.chromium.org/issues/513134173](https://issues.chromium.org/issues/513134173)

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