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4.7 Medium

CVE-2024-6601 A race condition could lead to a cross-origin container obtaining permissions of the top-level origin

Description

A race condition could lead to a cross-origin container obtaining permissions of the top-level origin. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.

Affected products and versions

Product Affected versions Fixed in
Firefox 128 earliest → < 128 128
Firefox ESR 115.13 earliest → < 115.13 115.13
Thunderbird 128 earliest → < 128 128

Other CVEs of Firefox

The 2221 CVEs of Firefox →
CVE-2026-120572 Incorrect boundary conditions in the Layout: Block and Inline component 8.8 High CVE-2026-118027 Frame poisoning in the Layout component 9.1 Critical CVE-2026-118024 Use-after-free in the Graphics: Text component 8.8 High CVE-2026-118025 Other issue in the SVG component 8.8 High
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