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Alerts This Week
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Slackware 15.0 Mozilla-Firefox Security Update Announcement SSA-2026-058-04

slackware
Calendar Grey February 27, 2026
Dist Slackware Esm H88
Security updates for mozilla-thunderbird packages in Slackware 15.0 address critical flaws that require immediate action.
New mozilla-thunderbird packages are available for Slackware 15.0 and -current to fix security issues.

Summary

Here are the details from the Slackware 15.0 ChangeLog: patches/packages/mozilla-thunderbird-140.8.0esr-i686-1_slack15.0.txz: Upgraded. This release contains security fixes and improvements. For more information, see: https://www.thunderbird.net/en-US/thunderbird/140.8.0esr/releasenotes/ https://www.mozilla.org/en-US/security/advisories/mfsa2026-17/ https://www.cve.org/CVERecord?id=CVE-2026-2757 https://www.cve.org/CVERecord?id=CVE-2026-2758 https://www.cve.org/CVERecord?id=CVE-2026-2759 https://www.cve.org/CVERecord?id=CVE-2026-2760 https://www.cve.org/CVERecord?id=CVE-2026-2761 https://www.cve.org/CVERecord?id=CVE-2026-2762 https://www.cve.org/CVERecord?id=CVE-2026-2763 https://www.cve.org/CVERecord?id=CVE-2026-2764 https://www.cve.org/CVERecord?id=CVE-2026-2765 https://www.cve.org/CVERecord?id=CVE-2026-2766 https://www.cve.org/CVERecord?id=CVE-2026-2767 https://www.cve.org/CVERecord?id=CVE-2026-2768

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory security issue remote access important slackware mozilla thunderbird

Where Find New Packages

Thanks to the friendly folks at the OSU Open Source Lab (http://osuosl.org) for donating FTP and rsync hosting to the Slackware project! :-)
Also see the "Get Slack" section on http://www.slackware.com/ for additional mirror sites near you.
Updated package for Slackware 15.0: ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/mozilla-thunderbird-140.8.0esr-i686-1_slack15.0.txz
Updated package for Slackware x86_64 15.0: ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/mozilla-thunderbird-140.8.0esr-x86_64-1_slack15.0.txz
Updated package for Slackware -current: ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-thunderbird-140.8.0esr-i686-1.txz
Updated package for Slackware x86_64 -current: ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-thunderbird-140.8.0esr-x86_64-1.txz

MD5 Signatures

Slackware 15.0 package: 11fe47459021590dde8282d726854172 mozilla-thunderbird-140.8.0esr-i686-1_slack15.0.txz
Slackware x86_64 15.0 package: fad682212cce56a9f6817afafbe278b8 mozilla-thunderbird-140.8.0esr-x86_64-1_slack15.0.txz
Slackware -current package: 0b1cbd2d406f5a38d15b7d4a8995855a xap/mozilla-thunderbird-140.8.0esr-i686-1.txz
Slackware x86_64 -current package: 23899d22f062211e4427eeb57f280962 xap/mozilla-thunderbird-140.8.0esr-x86_64-1.txz

Severity
important
Lowest
Low
Medium
High
Critical

Topics%20covered

Topics Covered

security advisory security issue remote access important slackware mozilla thunderbird

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Installation Instructions

Installation instructions: Upgrade the package as root: # upgradepkg mozilla-thunderbird-140.8.0esr-i686-1_slack15.0.txz

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