Improper Input Validation Affecting thunderbird-debuginfo package, versions <0:140.9.0-1.el10_1


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.2% (11th percentile)

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  • Snyk IDSNYK-RHEL10-THUNDERBIRDDEBUGINFO-15908735
  • published5 Apr 2026
  • disclosed24 Mar 2026

Introduced: 24 Mar 2026

CVE-2026-3889  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade RHEL:10 thunderbird-debuginfo to version 0:140.9.0-1.el10_1 or higher.
This issue was patched in RHSA-2026:6342.

NVD Description

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

Spoofing issue in Thunderbird. This vulnerability was fixed in Thunderbird 149 and Thunderbird 140.9.

CVSS Base Scores

version 3.1