CVE-2026-13593

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

State: Published
Severity: 6.5 Medium
Published: Jun 29, 2026
Updated: Jun 29, 2026
Reserved: Jun 29, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N	CISA-ADP

Weaknesses

CWE-401 Missing Release of Memory after Effective Lifetime

Affected Products

Product	Versions
CSS::Minifier::XSGTERMARS	before 0.14Affected

References

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

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