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firefox: thunderbird: Site isolation issue in the Graphics: WebRender component

🗓️ 11 Aug 2026 14:37:36Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 6 Views

Site isolation flaw in WebRender affects Firefox and Thunderbird graphics component.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-16358
21 Jul 202612:37
attackerkb
amazon
Amazon
Important: firefox
17 Aug 202600:00
amazon
amazon
Amazon
Important: firefox
17 Aug 202600:00
amazon
nessus
Tenable Nessus
AlmaLinux 10 : firefox (ALSA-2026:47101)
6 Aug 202600:00
nessus
nessus
Tenable Nessus
AlmaLinux 9 : firefox (ALSA-2026:47104)
12 Aug 202600:00
nessus
nessus
Tenable Nessus
AlmaLinux 8 : firefox (ALSA-2026:47105)
7 Aug 202600:00
nessus
nessus
Tenable Nessus
AlmaLinux 10 : thunderbird (ALSA-2026:49621)
6 Aug 202600:00
nessus
nessus
Tenable Nessus
Debian dla-4695 : firefox-esr - security update
22 Jul 202600:00
nessus
nessus
Tenable Nessus
Debian dla-4727 : thunderbird - security update
10 Aug 202600:00
nessus
nessus
Tenable Nessus
Debian dsa-6394 : firefox-esr - security update
22 Jul 202600:00
nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.2aarch64thunderbird140.13.0-1.el9_2thunderbird-140.13.0-1.el9_2.aarch64.rpm
Red Hat Enterprise Linux9.2ppc64lethunderbird140.13.0-1.el9_2thunderbird-140.13.0-1.el9_2.ppc64le.rpm
Red Hat Enterprise Linux9.2s390xthunderbird140.13.0-1.el9_2thunderbird-140.13.0-1.el9_2.s390x.rpm
Red Hat Enterprise Linux9.2x86_64thunderbird140.13.0-1.el9_2thunderbird-140.13.0-1.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2aarch64thunderbird-debuginfo140.13.0-1.el9_2thunderbird-debuginfo-140.13.0-1.el9_2.aarch64.rpm
Red Hat Enterprise Linux9.2ppc64lethunderbird-debuginfo140.13.0-1.el9_2thunderbird-debuginfo-140.13.0-1.el9_2.ppc64le.rpm
Red Hat Enterprise Linux9.2s390xthunderbird-debuginfo140.13.0-1.el9_2thunderbird-debuginfo-140.13.0-1.el9_2.s390x.rpm
Red Hat Enterprise Linux9.2x86_64thunderbird-debuginfo140.13.0-1.el9_2thunderbird-debuginfo-140.13.0-1.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2aarch64thunderbird-debugsource140.13.0-1.el9_2thunderbird-debugsource-140.13.0-1.el9_2.aarch64.rpm
Red Hat Enterprise Linux9.2ppc64lethunderbird-debugsource140.13.0-1.el9_2thunderbird-debugsource-140.13.0-1.el9_2.ppc64le.rpm
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12 Aug 2026 15:49Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.19.8
EPSS0.00216
SSVC
6