Incorrect Privilege Assignment Affecting thunderbird package, versions <0:140.9.0-1.el10_0


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.42% (34th percentile)

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  • Snyk IDSNYK-RHEL10-THUNDERBIRD-16088024
  • published16 Apr 2026
  • disclosed24 Mar 2026

Introduced: 24 Mar 2026

CVE-2026-4717  (opens in a new tab)
CWE-266  (opens in a new tab)

How to fix?

Upgrade RHEL:10 thunderbird to version 0:140.9.0-1.el10_0 or higher.
This issue was patched in RHSA-2026:8315.

NVD Description

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

Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

CVSS Base Scores

version 3.1