Exposure of Private Information ('Privacy Violation') Affecting thunderbird package, versions <0:153.5.0-1.el10_0


Severity

Recommended
0.0
low
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.21% (11th percentile)

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  • Snyk IDSNYK-RHEL10-THUNDERBIRD-22437485
  • published12 Nov 2026
  • disclosed13 Oct 2026

Introduced: 13 Oct 2026

NewCVE-2026-109777  (opens in a new tab)
CWE-359  (opens in a new tab)

How to fix?

Upgrade RHEL:10 thunderbird to version 0:153.5.0-1.el10_0 or higher.
This issue was patched in RHSA-2026:99050.

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.

Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

CVSS Base Scores

version 3.1