CVE-2026-92238 Affecting thunderbird package, versions <0:140.16.0-1.el8_10


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.54% (43rd percentile)

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  • Snyk IDSNYK-ROCKY8-THUNDERBIRD-20378654
  • published2 Oct 2026
  • disclosed15 Sept 2026

Introduced: 15 Sep 2026

CVE-2026-92238  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 thunderbird to version 0:140.16.0-1.el8_10 or higher.
This issue was patched in RLSA-2026:73971.

NVD Description

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

A maliciously constructed mail header could lead to multiple fields being parsed as one, or potential memory safety violations. This vulnerability was fixed in Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

CVSS Base Scores

version 3.1