Algorithmic Complexity Affecting firefox-debuginfo package, versions <0:140.10.2-1.amzn2023.0.3


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.44% (37th percentile)

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  • Snyk IDSNYK-AMZN2023-FIREFOXDEBUGINFO-16883742
  • published27 May 2026
  • disclosed10 May 2026

Introduced: 10 May 2026

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

How to fix?

Upgrade Amazon-Linux:2023 firefox-debuginfo to version 0:140.10.2-1.amzn2023.0.3 or higher.
This issue was patched in ALAS2023-2026-1725.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-debuginfo package and not the firefox-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 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