CVE-2026-8390

CVE-2026-8390: Use-after-free in the JavaScript: WebAssembly component

Published May 12, 2026
Last update May 13, 2026
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CVSS base score

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What the vulnerability does

Description

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150.0.3.

Key dates

Disclosure timeline

May 12, 2026 CVE published
May 13, 2026 Record updated