DEBIAN-CVE-2026-41305

Source
https://security-tracker.debian.org/tracker/CVE-2026-41305
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-41305.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-41305
Upstream
Published
2026-04-24T03:16:11Z
Modified
2026-09-14T17:03:10Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Versions prior to 8.5.10 do not escape </style> sequences when stringifying CSS ASTs. When user-submitted CSS is parsed and re-stringified for embedding in HTML <style> tags, </style> in CSS values breaks out of the style context, enabling XSS. Version 8.5.10 fixes the issue.

References

Affected packages

Debian:12 / node-postcss

Package

Name
node-postcss
Purl
pkg:deb/debian/node-postcss?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.4.20+~cs8.0.23-1
8.4.20+~cs8.0.23-1+deb12u1
8.4.31+~cs8.0.26-1
8.4.39+~cs9.2.29-1
8.4.49+~cs9.2.32-1
8.5.6+~cs9.3.28-1
8.5.8+~cs9.3.30-1
8.5.9+~cs9.3.30-1
8.5.12+~cs9.3.32-1
8.5.14+~cs9.3.34-1
8.5.15+~cs9.3.34-1
8.5.15+~cs9.3.38-1
8.5.15+~cs9.3.39-1
8.5.19+~cs10.2.23-1
8.5.21+~cs10.2.23-1
8.5.23+~cs10.2.23-1
8.5.25+~cs10.2.23-1
8.5.26+~cs10.2.24-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-41305.json"

Debian:13 / node-postcss

Package

Name
node-postcss
Purl
pkg:deb/debian/node-postcss?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.4.49+~cs9.2.32-1
8.5.6+~cs9.3.28-1
8.5.8+~cs9.3.30-1
8.5.9+~cs9.3.30-1
8.5.12+~cs9.3.32-1
8.5.14+~cs9.3.34-1
8.5.15+~cs9.3.34-1
8.5.15+~cs9.3.38-1
8.5.15+~cs9.3.39-1
8.5.19+~cs10.2.23-1
8.5.21+~cs10.2.23-1
8.5.23+~cs10.2.23-1
8.5.25+~cs10.2.23-1
8.5.26+~cs10.2.24-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-41305.json"

Debian:14 / node-postcss

Package

Name
node-postcss
Purl
pkg:deb/debian/node-postcss?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.5.12+~cs9.3.32-1

Affected versions

8.*
8.4.49+~cs9.2.32-1
8.5.6+~cs9.3.28-1
8.5.8+~cs9.3.30-1
8.5.9+~cs9.3.30-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-41305.json"