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JavaScript Engine vulnerabilities
3 known CVE vulnerabilities in JavaScript Engine, translated and rated.
- CVE-2026-2786Critical
CVE-2026-2786 involves a use-after-free vulnerability in the JavaScript Engine component. It has been fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
- CVE-2026-2763Critical
A use-after-free vulnerability was discovered in the JavaScript Engine component of Firefox and Thunderbird. It is fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
- CVE-2026-8391Medium
An unspecified vulnerability was discovered in the JavaScript Engine component of Firefox and Thunderbird. The flaw is fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.