Integer Overflow or Wraparound Affecting thunderbird package, versions <0:140.8.0-1.amzn2.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.36% (28th percentile)

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  • Snyk IDSNYK-AMZN2-THUNDERBIRD-15751497
  • published23 Mar 2026
  • disclosed24 Feb 2026

Introduced: 24 Feb 2026

CVE-2026-2781  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 thunderbird to version 0:140.8.0-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2026-3198.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35.

CVSS Base Scores

version 3.1