PT-2026-88568

Incorrect authorization in Isolated in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass site isolation via a crafted HTML page. Chromium security severity: Medium...

PT-2026-88599

Incorrect authorization in Network in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. Chromium security severity: High...

PT-2026-88680

Incorrect authorization in WebAppInstalls in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass site isolation via a crafted HTML page. Chromium security severity: Medium...

PT-2026-88706

Missing authorization in SiteIsolation in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. Chromium security severity: Medium...

PT-2026-88571

Incorrect authorization in ServiceWorker in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. Chromium security severity: Medium...

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Site isolation issue in the Graphics: CanvasWebGL component CVE-2026-74934 firefox: thunderbird: Privilege escalation in the Networking: Cookies component CVE-2026-74953 firefox: thunderbird:...

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Site isolation issue in the Graphics: CanvasWebGL component CVE-2026-74934 firefox: thunderbird: Internally found bugs fixed in Firefox ESR 140.14, Firefox ESR 153.1 and Firefox 154 CVE-2026-74987...

RHEL 10 : thunderbird (RHSA-2026:65159)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:65159 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Site isolation issue in the Graphics:...

openSUSE 16: MozillaFirefox / MozillaFirefox-branding-upstream / etc (openSUSE-SU-2026:21713-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21713-1 advisory. Changes in MozillaFirefox: Firefox Extended Support Release 153.1.0 ESR. Fixed: Various security fixes. MFSA 2026-77 bsc1274867: CVE-2026-74934...

SUSE CVE-2026-84129

Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2...

SUSE CVE-2026-84133

Site isolation issue in the DOM: Push Subscriptions component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2...

SUSE CVE-2026-84140

Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2...

Linux Distros Unpatched Vulnerability : CVE-2026-84129

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2...

Linux Distros Unpatched Vulnerability : CVE-2026-84133

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Site isolation issue in the DOM: Push Subscriptions component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird...

Linux Distros Unpatched Vulnerability : CVE-2026-84140

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2...

CVE-2026-84140

Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2...

CVE-2026-84133

Site isolation issue in the DOM: Push Subscriptions component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2...

CVE-2026-84129

Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2...

CVE-2026-84140

CVE-2026-84140 is a site isolation issue in the DOM: Navigation component affecting Mozilla Firefox , Firefox ESR , Thunderbird , and Thunderbird ESR . Per Kaspersky analysis, this vulnerability enables remote code execution when exploited, allowing arbitrary code to run on the target system. The...

CVE-2026-84140 Site isolation issue in the DOM: Navigation component

Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2...