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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GTERMARS | CSS::Minifier::XS | < 0.14 | 0.14 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libcss-minifier-xs-perl | 0.14-1 | — |
| Debian 13 | libcss-minifier-xs-perl | No fix yet | — |
| Debian 12 | libcss-minifier-xs-perl | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libcss-minifier-xs-perl | No fix yet | — |
| Ubuntu 26.04 LTS | libcss-minifier-xs-perl | No fix yet | — |
| Ubuntu 25.10 | libcss-minifier-xs-perl | No fix yet | — |
| Ubuntu 24.04 LTS | libcss-minifier-xs-perl | No fix yet | — |
| Ubuntu 22.04 LTS | libcss-minifier-xs-perl | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | libcss-minifier-xs-perl | No fix yet | — |
| Ubuntu 18.04 LTS | libcss-minifier-xs-perl | No fix yet | — |
| Ubuntu 16.04 LTS | libcss-minifier-xs-perl | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | perl-CSS-Minifier-XS | 0.140.0-1.1 | openSUSE-SU-2026:11157-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | perl-css-minifier-xs | 0.16-r0 | — |
Advisories 1
- openSUSE-SU-2026:11157-1 perl-CSS-Minifier-XS-0.140.0-1.1 on GA media SUSE / openSUSE Security Updates · Jul 1, 2026