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ALSA-2026:19160 — Important: firefox security update

Affected: AlmaLinux:10: firefox

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

* firefox: Other issue in the WebRTC component (CVE-2026-8094) * firefox: Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2 (CVE-2026-8092) * firefox: Use-after-free in the DOM: Networking component (CVE-2026-8090)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2026-07923

certfr-2026-avi-0555 — De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Elles permettent à un attaquant de provoquer…

certfr-2026-avi-0555

EUVD-2026-342277

fkie_cve-2026-8090

Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.

GHSA-4345-ccpc-8955

Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, and Firefox ESR 115.35.2.

OESA-2026-2292 — thunderbird security update

Affected: openEuler:24.03-LTS-SP3: thunderbird

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fix(es):

Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.(CVE-2026-8090)

Memory safety bugs present in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.(CVE-2026-8092)

Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2 and Thunderbird 140.10.2.(CVE-2026-8094)

openSUSE-SU-2026:10720-1 — firefox-esr-140.10.2-1.1 on GA media

firefox-esr-140.10.2-1.1 on GA media

RHSA-2026:19160 — Red Hat Security Advisory: firefox security update

firefox: thunderbird: Use-after-free in the DOM: Networking component firefox: Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2 firefox: thunderbird: Other issue in the WebRTC component

RLSA-2026:19160 — Important: firefox security update

Affected: Rocky Linux:10: firefox

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

* firefox: Other issue in the WebRTC component (CVE-2026-8094)

* firefox: Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2 (CVE-2026-8092)

* firefox: Use-after-free in the DOM: Networking component (CVE-2026-8090)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

SUSE-SU-2026:1830-1 — Security update for MozillaFirefox

Security update for MozillaFirefox

UBUNTU-CVE-2026-8090

Affected: Ubuntu:18.04:LTS: mozjs52, Ubuntu:18.04:LTS: mozjs38, Ubuntu:20.04:LTS: mozjs68, Ubuntu:20.04:LTS: mozjs52, Ubuntu:22.04:LTS: mozjs102, Ubuntu:22.04:LTS: mozjs78, Ubuntu:22.04:LTS: mozjs91, Ubuntu:22.04:LTS: thunderbird, Ubuntu:24.04:LTS: mozjs102, Ubuntu:24.04:LTS: mozjs115

Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.

WID-SEC-W-2026-1427 — Mozilla Firefox und Firefox ESR: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Mozilla Firefox und Mozilla Firefox ESR ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen, und um beliebigen Programmcode auszuführen.