File Descriptor Leak Affecting thunderbird package, versions <0:140.11.0-1.el8_10


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.34% (26th percentile)

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  • Snyk IDSNYK-CENTOS8-THUNDERBIRD-17017635
  • published28 May 2026
  • disclosed19 May 2026

Introduced: 19 May 2026

CVE-2026-8958  (opens in a new tab)
CWE-403  (opens in a new tab)

How to fix?

Upgrade Centos:8 thunderbird to version 0:140.11.0-1.el8_10 or higher.

NVD Description

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

Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVSS Base Scores

version 3.1