Algorithmic Complexity Affecting firefox package, versions <0:153.5.0-1.el8_10


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.48% (39th percentile)

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  • Snyk IDSNYK-ALMALINUX8-FIREFOX-22191016
  • published4 Nov 2026
  • disclosed4 Jun 2026

Introduced: 4 Jun 2026

CVE-2026-45186  (opens in a new tab)
CWE-407  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 firefox to version 0:153.5.0-1.el8_10 or higher.
This issue was patched in ALSA-2026:89756.

NVD Description

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

In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.

CVSS Base Scores

version 3.1