Vulnerabilities (CVE)

Filtered by vendor Premailer Subscribe
Filtered by product Css Parser
Total 1 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2026-53727 1 Premailer 1 Css Parser 2026-08-18 N/A 8.6 HIGH
css_parser is a Ruby CSS parser. From 2.2.0 until 3.0.0, CssParser::Parser#read_remote_file in lib/css_parser/parser.rb, and therefore load_uri! and the @import-following branch of add_block!, issued HTTP and HTTPS requests against any host, port, and URI without a scheme allowlist, host or IP filtering, or protection against link-local, loopback, or RFC-1918 addresses. Location: redirects were followed recursively back into the same function, which also serviced file:// URIs, so a single attacker-controlled HTTP redirect could upgrade the bug from SSRF to arbitrary local file disclosure. Any consumer of css_parser that hands it attacker-influenced CSS together with a base_uri: option is exposed. This issue is fixed in version 3.0.0.