Mageia 9 Thunderbird Important CSS Exfiltration Security MGASA-2026-0036
mageia
February 11, 2026
MGASA-2026-0036 - Updated thunderbird packages fix security vulnerability
Summary
Description:
CSS-based exfiltration of the content from partially encrypted emails
when allowing remote content. (CVE-2026-0818)
References
- https://bugs.mageia.org/show_bug.cgi?id=35100
- https://www.thunderbird.net/en-US/thunderbird/140.7.1esr/releasenotes/
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-08/
- https://www.cve.org/CVERecord?id=CVE-2026-0818
Topics Covered
Resolution
SRPMS
- 9/core/thunderbird-140.7.1-1.mga9
- 9/core/thunderbird-l10n-140.7.1-1.mga9
PREVIOUS
NEXT
Severity
important
Lowest
Low
Medium
High
Critical
Publication date: 11 Feb 2026
URL: https://advisories.mageia.org/MGASA-2026-0036.html
Type: security
CVE: CVE-2026-0818
Topics Covered
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Related News
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!