CVE-2025-54387

Critical

Description

IPX is an image optimizer powered by sharp and svgo. In versions 1.3.1 and below, 2.0.0-0 through 2.1.0, and 3.0.0 through 3.1.0, the approach used to check whether a path is within allowed directories is vulnerable to path prefix bypass when the allowed directories do not end with a path separator. This occurs because the check relies on a raw string prefix comparison. This is fixed in versions 1.3.2, 2.1.1 and 3.1.1.

SeverityCritical
CVSS9.8
Exploit probability57. percentile0.8%
ProductUnjs Ipx
PublishedAug 5, 2025
First seenAug 5, 2025

How to fix

Update
  • unjs ipx1.3.2, 2.1.1, 3.1.1 or later
  • ipx1.3.2, 2.1.1, 3.1.1 or later

Affected products

ProductAffected versionsFixed in
unjs ipxv < 1.3.2, 2.0.0 ≤ v < 2.1.1, 3.0.0 ≤ v < 3.1.11.3.2, 2.1.1, 3.1.1
ipxnpmv < 1.3.2, 2.0.0-0 ≤ v < 2.1.1, 3.0.0 ≤ v < 3.1.11.3.2, 2.1.1, 3.1.1

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