Threats Tagged 'cve-2026-16365'

This Red Hat security advisory addresses a high-severity vulnerability identified as CVE-2026-16365 affecting Thunderbird. The advisory provides a functional equivalent update to a previous Red Hat advisory (RHSA-2026:73971). The vulnerability involves multiple weaknesses related to authorization and memory safety as indicated by associated CWEs. Affected versions include various Thunderbird and Firefox packages on Red Hat Enterprise Linux and SUSE Linux Enterprise distributions. No CVSS score is provided for this vulnerability.

A critical security update for Mozilla Firefox Extended Support Release (ESR) 153.1.0 addresses multiple vulnerabilities across components such as graphics, JavaScript engine, DOM, and networking. The issues include use-after-free, privilege escalation, information disclosure, mitigation bypasses, same-origin policy bypass, integer overflow, race conditions, and denial-of-service. These vulnerabilities affect Firefox ESR 153.1.0 and related branding and translation packages.

CVE-2026-16349 is a critical vulnerability in Mozilla Firefox involving a same-origin policy bypass in the DOM Navigation component. This flaw allows unauthorized access across origins, violating web security boundaries. The issue was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. The vulnerability has a CVSS score of 9.8, indicating high impact on confidentiality, integrity, and availability. No known exploits in the wild have been reported. Users should update to the fixed versions to mitigate the risk.

Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 153, Thunderbird 153, Firefox ESR 140.15, and Thunderbird 140.15.