CVE-2026-55878

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/symfony/ux/commit/7b4ddf3764bf269a1b5fde5bf03c4bce568694e4
https://github.com/symfony/ux/releases/tag/v2.36.1
https://github.com/symfony/ux/releases/tag/v3.2.0
https://github.com/symfony/ux/security/advisories/GHSA-p9xj-fpr2-jf2q

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-08 22:17

Updated : 2026-07-10 19:10

NVD link : CVE-2026-55878

Mitre link : CVE-2026-55878

CVE.ORG link : CVE-2026-55878

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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