Oracle Linux Thunderbird Important Security Advisory ELSA-2026

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Oracle Linux Thunderbird Important Security Advisory ELSA-2026

Linuxsecurity •LinuxSecurity Advisories • July 20, 2026

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[140.12.0-1.0.1] - Add Oracle prefs [140.12.0-1] - Update to 140.12.0 ESR [140.11.0-1] - Update to 140.11.0 ESR [140.10.1-1] - Update to 140.10.1 ESR

[140.12.0-1.0.1] - Add Oracle prefs [140.12.0-1] - Update to 140.12.0 ESR [140.11.0-1] - Update to 140.11.0 ESR [140.10.1-1] - Update to 140.10.1 ESR

thunderbird-140.12.0-1.0.1.el10_2.x86_64.rpm

thunderbird-140.12.0-1.0.1.el10_2.x86_64.rpm

thunderbird-140.12.0-1.0.1.el10_2.aarch64.rpm

thunderbird-140.12.0-1.0.1.el10_2.aarch64.rpm

Related CVEs: CVE-2026-8388 CVE-2026-8391 CVE-2026-8401 CVE-2026-8946 CVE-2026-8947 CVE-2026-8950 CVE-2026-8953 CVE-2026-8954 CVE-2026-8955 CVE-2026-8956 CVE-2026-8957 CVE-2026-8958 CVE-2026-8959 CVE-2026-8961 CVE-2026-8962 CVE-2026-8968 CVE-2026-8970 CVE-2026-8974 CVE-2026-8975

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The full story

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

Oracle Linux Thunderbird Security Updates Address Multiple CVEs Oracle has released important security updates for Thunderbird in Oracle Linux 10, addressing multiple vulnerabilities. The updates include versions 140.12.0-1.0.1, 140.12.0-1, 140.11.0-1, and 140.10.1-1. A total of 24 CVEs are related to this update, with notable vulnerabilities including CVE-2026-6746 through CVE-2026-6786. The vulnerabilities range from moderate to critical severity, affecting various components of the Thunderbird email client. Users are advised to update their systems to mitigate potential exploitation. The updates are available for both x86_64 and aarch64 architectures. The patches address issues that could lead to unauthorized access or data breaches. 2 sources 58

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