CVE-2025-54387: Unjs Ipx

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

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.

Affected products

• Unjs Ipx: before 1.3.2 (fixed in 1.3.2); from 2.0.0, before 2.1.1 (fixed in 2.1.1); from 3.0.0, before 3.1.1 (fixed in 3.1.1)

Published 2025-08-05. Last modified 2026-06-17.