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Oracle Linux 9 Thunderbird Important Security Advisory ELSA-2026

Linuxsecurity •LinuxSecurity Advisories • August 5, 2026

Audit Linux privileges now to limit compromise, escalation, and system-wide damage. Review Linux Privileges ×

[140.13.0-1.0.1] - Fix prefs for new nss [Orabug: 37079813] - Add Oracle prefs [140.13.0] - Add OpenELA debranding [140.13.0-1] - Update to 140.13.0 ESR

thunderbird-140.13.0-1.0.1.el9_8.x86_64.rpm

thunderbird-140.13.0-1.0.1.el9_8.aarch64.rpm

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Critical Security Updates for Thunderbird in Mageia and Oracle Linux Recent updates for Thunderbird in Mageia and Oracle Linux address multiple security vulnerabilities. Mageia's advisory (MGASA-2026-0326) released on 2026-08-07 lists numerous CVEs, including CVE-2026-14899 and CVE-2026-15719, with fixes for various security issues. Oracle's advisory (ELSA-2026) published on 2026-08-05 also highlights similar vulnerabilities, including CVEs from the Mageia advisory. The vulnerabilities could lead to privilege escalation and system-wide damage if exploited. Users of both Mageia and Oracle Linux are urged to update their Thunderbird packages immediately to mitigate risks. The updates include versions 140.13.0-1 for both distributions. The advisories emphasize the importance of auditing Linux privileges to limit potential compromises. As of now, there are no reports of active exploitation of these vulnerabilities. 2 sources 74

Oracle Linux 9 Thunderbird Important Security Advisory ELSA-2026

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