Vulnerabilities
Vulnerable Software

Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 13.8%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2026-8955


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