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5.1 Medium

CVE-2025-4089 Due to insufficient escaping of special characters in the "copy as cURL" feature, an attacker could trick a user into…

Description

Due to insufficient escaping of special characters in the "copy as cURL" feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. This vulnerability was fixed in Firefox 138 and Thunderbird 138.

Affected products and versions

Product Affected versions Fixed in
Firefox 138 earliest → < 138 138
Thunderbird 138 earliest → < 138 138

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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