Is CVE-2026-103626 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-103626 being exploited in the wild.

How severe is CVE-2026-103626?

Critical severity, with a CVSS score of 9.6, published 2 October 2026.

Which products and versions are affected?

Google Chrome prior to 154.0.8037.97 on Windows.

Is there a fix for CVE-2026-103626?

Yes: fixed in Chrome 154.0.8037.97. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-103626 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-103626?

Check whether you run Google Chrome or Microsoft Windows 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.

CVE-2026-103626: Google Chrome FileSystem incorrect authorization in sandbox escape

CVE-2026-103626 · Severity: critical · CVSS 9.6 · Published 2026-10-02

Google Chrome contains an authorization flaw in its FileSystem implementation that can be exploited via a crafted HTML page shown to a user, potentially allowing an attacker to execute arbitrary code outside the browser's security sandbox. This bypasses Chrome's sandbox protection and could lead to full system compromise.

Technologies: Google Chrome, Microsoft Windows. Vendors: Google, Microsoft.

Quick answers

Is CVE-2026-103626 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-103626 being exploited in the wild.
How severe is CVE-2026-103626?: Critical severity, with a CVSS score of 9.6, published 2 October 2026.
Which products and versions are affected?: Google Chrome prior to 154.0.8037.97 on Windows.
Is there a fix for CVE-2026-103626?: Yes: fixed in Chrome 154.0.8037.97. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-103626 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-103626?: Check whether you run Google Chrome or Microsoft Windows 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.

How to fix

Fixed in: Chrome 154.0.8037.97

Technical details

An incorrect authorization check in Chrome's FileSystem component allows a remote attacker to escape the sandbox through social engineering (user interaction with a crafted HTML page). The vulnerability affects Chrome on Windows prior to version 154.0.8037.97 and enables arbitrary code execution with privileges outside the sandbox boundary.

Affected products

Google Chrome prior to 154.0.8037.97 on Windows

Timeline

2026-10-02: disclosed

References

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