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8.1 High

CVE-2026-109744 Other issue in the DOM: File component

Description

Other issue in the DOM: File component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

Affected products and versions

Product Affected versions Fixed in
Firefox 158 earliest → < 158 158
Firefox 153.5 earliest → < 153.5 153.5
Thunderbird 158 earliest → < 158 158
Thunderbird 153.5 earliest → < 153.5 153.5

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-2026-118025 Other issue in the SVG component 8.8 High CVE-2026-118026 Invalid pointer in the JavaScript: GC component 8.8 High
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