CVE-2026-8962 Affecting firefox package, versions <0:140.11.0-1.0.1.el8_10


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.37% (29th percentile)

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  • Snyk IDSNYK-ORACLE8-FIREFOX-17036293
  • published28 May 2026
  • disclosed19 May 2026

Introduced: 19 May 2026

CVE-2026-8962  (opens in a new tab)

How to fix?

Upgrade Oracle:8 firefox to version 0:140.11.0-1.0.1.el8_10 or higher.
This issue was patched in ELSA-2026-21382.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVSS Base Scores

version 3.1