CVE-2026-55878
High · 7.8CVSS
7.8
EPSS
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Published
Jul 8, 2026
CISA due date
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The record
Symfony UX is a JavaScript ecosystem for Symfony. From 2.32.0 before 2.36.1 and from 3.0.0 before 3.2.0, the ux:install console command installs files from a recipe kit by copying paths listed in a copy-files map, and because Path::isRelative() accepts paths like ../../../etc, a crafted or compromised kit can write attacker-controlled content to arbitrary locations or read local files outside the recipe directory. This issue is fixed in versions 2.36.1 and 3.2.0.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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