# CVE-2026-87637: Google Chrome use-after-free in Extensions on Mac

Source: https://junglewise.ai/threats/cve-2026-87637-google-chrome-use-after-free-in-extensions-on-mac  
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-2026-87637 · Severity: critical · CVSS 9.6 · Published 2026-09-09

Google Chrome is a web browser used by hundreds of millions of people worldwide to access websites and web applications. A vulnerability in the Extensions component allows a remote attacker to execute malicious code outside Chrome's security sandbox via a specially crafted webpage, potentially giving attackers full control of an affected user's computer and access to all stored passwords, files, and personal data.

Technologies: [Apple macOS](https://junglewise.ai/threats/technologies/macos), [Google Chrome](https://junglewise.ai/threats/technologies/chrome). Vendors: [Apple](https://junglewise.ai/threats/vendors/apple), [Google](https://junglewise.ai/threats/vendors/google).

## Quick answers

**Is CVE-2026-87637 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-87637 being exploited in the wild.

**How severe is CVE-2026-87637?** Critical severity, with a CVSS score of 9.6, published 9 September 2026.

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

**Is there a fix for CVE-2026-87637?** 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-2026-87637 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-87637?** Check whether you run Apple macOS 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

This is a use-after-free vulnerability in the Extensions component of Google Chrome on macOS. A remote attacker can exploit this flaw by crafting a malicious HTML page that, when visited by a user, triggers the use-after-free condition and achieves arbitrary code execution outside the Chrome sandbox. The vulnerability affects Chrome versions prior to 153.0.8010.36/37 and was patched in that release. Exploitation does not require prior authentication or user interaction beyond visiting the malicious page.

## Affected products

- Google Chrome prior to 153.0.8010.36

## 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/534863145](https://issues.chromium.org/issues/534863145)

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