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CVE-2026-6763

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CVE-2026-6763

Published: Apr 21, 2026

Modified: May 26, 2026

PUBLISHED

Description

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

VendorProductVersions

Mozilla

Firefox

unaffected
140.10 - <= 140.*
unaffected
150 - <= *

Mozilla

Thunderbird

unaffected
140.10 - <= 140.*
unaffected
150 - <= *

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