0.0
NA
CVE-2026-124900
Sandbox escape due to use-after-free in the DOM: Service Workers component
Description

Sandbox escape due to use-after-free in the DOM: Service Workers component. This vulnerability was fixed in Firefox 160.

INFO

Published Date :

Nov. 10, 2026, 1:28 p.m.

Last Modified :

Nov. 10, 2026, 1:28 p.m.

Remotely Exploit :

No

Source :

mozilla
Affected Products

The following products are affected by CVE-2026-124900 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mozilla firefox
Solution
Update Firefox to a version that includes the fix for the use-after-free vulnerability.
  • Update Firefox to version 160 or later.
  • Apply available security patches for Firefox.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-124900 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.