{"id":"JLSEC-2026-504","details":"The parsing component in LibSass through 3.5.5 allows attackers to cause a denial-of-service (uncontrolled recursion in `Sass::Parser::parse_css_variable_value` in parser.cpp).","modified":"2026-07-25T18:24:32.399249349Z","published":"2026-05-18T14:23:04.937Z","upstream":["CVE-2018-20821"],"database_specific":{"sources":[{"html_url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20821","database_specific":{"status":"Modified"},"id":"CVE-2018-20821","imported":"2026-07-17T22:01:53.315Z","modified":"2026-06-17T01:53:32.777Z","published":"2019-04-23T14:29:00.460Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2018-20821"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html"},{"type":"WEB","url":"https://github.com/sass/libsass/issues/2658"}],"affected":[{"package":{"name":"libsass_jll","ecosystem":"Julia","purl":"pkg:julia/libsass_jll?uuid=47bcb7c8-5119-555a-9eeb-0afcc36cd728"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.6.4+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-504.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V2","score":"AV:N/AC:M/Au:N/C:N/I:N/A:P"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}