Skip to content
OpenAdvisories

Package · Ubuntu

ruby-css-parser

2 known vulnerabilities.

All Critical High Medium Low Exploited only

1 result · Clear filters · Feed

  • Medium 5.8
    CVE-2026-44312

    css_parser allows to MITM included https css urls

    css_parser is a Ruby CSS parser. Prior to 2.1.0 and 1.22.0, the CSS Parser gem does not validate HTTPS connections, allowing a Man-in-the-Middle (MITM) attacker to inject or modify CSS content when stylesheets are loaded via HTTPS. The connection is establish…

    premailer css_parser ruby-css-parser css_parser Debian Ubuntu RubyGems