Access of Resource Using Incompatible Type ('Type Confusion') Affecting thunderbird-debugsource package, versions <0:140.16.0-1.el10_0


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.54% (43rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL10-THUNDERBIRDDEBUGSOURCE-20846745
  • published13 Oct 2026
  • disclosed15 Sept 2026

Introduced: 15 Sep 2026

CVE-2026-92238  (opens in a new tab)
CWE-843  (opens in a new tab)

How to fix?

Upgrade RHEL:10 thunderbird-debugsource to version 0:140.16.0-1.el10_0 or higher.
This issue was patched in RHSA-2026:81392.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird-debugsource package and not the thunderbird-debugsource package as distributed by RHEL. See How to fix? for RHEL:10 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