What is CVE-2026-13593?

CVE-2026-13593 is a medium-severity vulnerability in Gtermars Css::minifier::xs, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 6.5/10. Published 2026-06-29.

How severe is CVE-2026-13593?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Gtermars Css::minifier::xs

CVE-2026-13593

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…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Gtermars Css::minifier::xs — versions 0

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-13593?: CVE-2026-13593 is a medium-severity vulnerability in Gtermars Css::minifier::xs, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 6.5/10. Published 2026-06-29.
How severe is CVE-2026-13593?: Medium severity. CVSS v3 base score is 6.5 out of 10.