VulnerabilityDeferred

CVE-2026-13593

CSS::Minifier::XS versions before 0.14 for Perl have a memory leak when the entire document is minified away.

MEDIUM 6.5EPSS 0.29%

Does this matter?

Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.

Description

CSS::Minifier::XS versions before 0.14 for Perl have a memory leak when the entire document is minified away. The minify function has a memory leak when processing a document containing only characters to be removed, such as comments and whitespace.

CVSS 3.1: 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS: 0.29% probability · 22th percentile
CISA KEV: Not listed
Weakness: CWE-401
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e

References

https://metacpan.org/release/GTERMARS/CSS-Minifier-XS-0.14/changes
http://www.openwall.com/lists/oss-security/2026/06/29/18

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.