CVE-2026-16375 Affecting firefox package, versions <0:140.13.0-1.el9_8


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.21% (12th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ROCKY9-FIREFOX-18515761
  • published4 Aug 2026
  • disclosed21 Jul 2026

Introduced: 21 Jul 2026

NewCVE-2026-16375  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 firefox to version 0:140.13.0-1.el9_8 or higher.
This issue was patched in RLSA-2026:47104.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 relevant fixed versions and status.

Site isolation issue in the Networking: HTTP component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

CVSS Base Scores

version 3.1