CVE-2026-2776 Affecting firefox-debuginfo package, versions <0:140.8.0-1.amzn2023.0.1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.48% (38th percentile)

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  • Snyk IDSNYK-AMZN2023-FIREFOXDEBUGINFO-15845689
  • published30 Mar 2026
  • disclosed24 Feb 2026

Introduced: 24 Feb 2026

CVE-2026-2776  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 firefox-debuginfo to version 0:140.8.0-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-1470.

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.

Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

CVSS Base Scores

version 3.1