Compiler Optimization Removal or Modification of Security-critical Code Affecting firefox-debuginfo package, versions <0:140.9.0-1.amzn2023.0.2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.76% (51st percentile)

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  • Snyk IDSNYK-AMZN2023-FIREFOXDEBUGINFO-16067151
  • published15 Apr 2026
  • disclosed24 Mar 2026

Introduced: 24 Mar 2026

CVE-2026-4698  (opens in a new tab)
CWE-733  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 firefox-debuginfo to version 0:140.9.0-1.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2026-1554.

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.

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

CVSS Base Scores

version 3.1