Is CVE-2026-126906 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-126906 being exploited in the wild.

How severe is CVE-2026-126906?

Informational severity, published 11 November 2026.

Which products and versions are affected?

Google Chrome prior to 157.0.8103.78 on Mac.

Is there a fix for CVE-2026-126906?

Yes: fixed in Chrome 157.0.8103.78 (Mac), 157.0.8103.79 (Windows and Mac). Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-126906 attacked?

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

Am I affected by CVE-2026-126906?

Check whether you run 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.

CVE-2026-126906: Google Chrome race condition in Extensions on Mac

CVE-2026-126906 · Severity: info · Published 2026-11-11

Google Chrome is a web browser used by billions of users worldwide. A race condition vulnerability in the Extensions component on macOS could allow an attacker with control of the browser's renderer process to obtain sensitive information through specially crafted network traffic. Users on Mac running Chrome prior to version 157.0.8103.78 are affected.

Technologies: Google Chrome. Vendors: Google.

Quick answers

Is CVE-2026-126906 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-126906 being exploited in the wild.
How severe is CVE-2026-126906?: Informational severity, published 11 November 2026.
Which products and versions are affected?: Google Chrome prior to 157.0.8103.78 on Mac.
Is there a fix for CVE-2026-126906?: Yes: fixed in Chrome 157.0.8103.78 (Mac), 157.0.8103.79 (Windows and Mac). Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-126906 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-126906?: Check whether you run 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.

How to fix

Fixed in: Chrome 157.0.8103.78 (Mac), 157.0.8103.79 (Windows and Mac)

Technical details

A race condition exists in Chrome's Extensions component that allows an attacker who has already compromised the renderer process to extract sensitive information via crafted network traffic. The vulnerability requires prior renderer process compromise, limiting the attack surface. The issue is fixed in Chrome 157.0.8103.78 and later.

Affected products

Google Chrome prior to 157.0.8103.78 on Mac

Timeline

2026-11-11: disclosed

References

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