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CVE-2026-2783

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CVE-2026-2783

Published: Feb 24, 2026

Modified: Apr 13, 2026

PUBLISHED

Description

Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

VendorProductVersions

Mozilla

Firefox

unaffected
140.8 - <= 140.*
unaffected
148 - <= *

Mozilla

Thunderbird

unaffected
140.8 - <= 140.*
unaffected
148 - <= *

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