CVE-2026-8955 vulnerabilities

Vulnerabilities for packages: firefox-esr, firefox...

RHEL 9 : thunderbird (RHSA-2026:26521)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:26521 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: Incorrect boundary conditions in the JavaScript...

RHEL 10 : thunderbird (RHSA-2026:26539)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:26539 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: Incorrect boundary conditions in the JavaScript...

openSUSE 16 Security Update : MozillaFirefox (openSUSE-SU-2026:20789-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20789-1 advisory. This update for MozillaFirefox fixes the following issues - Update to Firefox Extended Support Release 140.11.0 ESR MFSA 2026-48 bsc1265212. MFS...

CVE-2026-8955

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the DOM: Workers component...

CVE-2026-8955

Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11...

Linux Distros Unpatched Vulnerability : CVE-2026-8955

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11...