CVE-2025-11712 Affecting thunderbird package, versions <0:140.4.0-2.el9_6.alma.1


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.03% (9th percentile)

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  • Snyk IDSNYK-ALMALINUX9-THUNDERBIRD-13670892
  • published23 Oct 2025
  • disclosed20 Oct 2025

Introduced: 20 Oct 2025

NewCVE-2025-11712  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 thunderbird to version 0:140.4.0-2.el9_6.alma.1 or higher.
This issue was patched in ALSA-2025:18321.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.

CVSS Base Scores

version 3.1