Use After Free Affecting Firefox package, versions [,156)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.32% (23rd percentile)

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  • Snyk IDSNYK-UNMANAGED-FIREFOX-20825567
  • published11 Oct 2026
  • disclosed11 Oct 2026
  • creditUnknown

Introduced: 11 Oct 2026

NewCVE-2026-92029  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Firefox to version 156 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free in the SVG component. An attacker can execute arbitrary code or cause a denial of service by triggering the deallocation of memory while it is still in use.

CVSS Base Scores

version 4.0
version 3.1