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Slackware 15.0 mozilla-thunderbird Important Security Issues Fix

slackware
Calendar Grey May 19, 2026
Dist Slackware Esm H88
New security updates for mozilla-thunderbird provided for Slackware to address important vulnerabilities.
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-140.11.0esr-i686-1_slack15.0.txz: Upgraded. This release contains security fixes and improvements. For more information, see: https://www.mozilla.org/en-US/thunderbird/140.11.0esr/releasenotes/ https://www.mozilla.org/en-US/security/advisories/mfsa2026-51/ https://www.cve.org/CVERecord?id=CVE-2026-8946 https://www.cve.org/CVERecord?id=CVE-2026-8388 https://www.cve.org/CVERecord?id=CVE-2026-8947 https://www.cve.org/CVERecord?id=CVE-2026-8391 https://www.cve.org/CVERecord?id=CVE-2026-8401 https://www.cve.org/CVERecord?id=CVE-2026-8949 https://www.cve.org/CVERecord?id=CVE-2026-8950 https://www.cve.org/CVERecord?id=CVE-2026-8953 https://www.cve.org/CVERecord?id=CVE-2026-8954 https://www.cve.org/CVERecord?id=CVE-2026-8955 https://www.cve.org/CVERecord?id=CVE-2026-8956 https://www.cve.org/CVERecord?id=CVE-2026-8957

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory security fix important slackware firefox mail client

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://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-140.11.0esr-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-140.11.0esr-x86_64-1_slack15.0.txz
Updated package for Slackware -current: ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-thunderbird-140.11.0esr-i686-1.txz
Updated package for Slackware x86_64 -current: ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-thunderbird-140.11.0esr-x86_64-1.txz

MD5 Signatures

Slackware 15.0 package: 0161dca4782fef882b107dd0723792e1 mozilla-thunderbird-140.11.0esr-i686-1_slack15.0.txz
Slackware x86_64 15.0 package: f274af98019427b32a90f7400f16f230 mozilla-thunderbird-140.11.0esr-x86_64-1_slack15.0.txz
Slackware -current package: e750bf915472f0f55ba7574ec6818ca4 xap/mozilla-thunderbird-140.11.0esr-i686-1.txz
Slackware x86_64 -current package: 0a5eed54c26c695b379ccd692cede3b8 xap/mozilla-thunderbird-140.11.0esr-x86_64-1.txz

Severity
important
Lowest
Low
Medium
High
Critical

Topics%20covered

Topics Covered

security advisory security fix important slackware firefox mail client

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Installation Instructions

Installation instructions: Upgrade the package as root: # upgradepkg mozilla-thunderbird-140.11.0esr-i686-1_slack15.0.txz

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