{"id":"JLSEC-2026-509","details":"In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::alternatives in prelexer.hpp.","modified":"2026-05-18T14:30:04.011869221Z","published":"2026-05-18T14:23:04.937Z","upstream":["CVE-2019-6284"],"database_specific":{"license":"CC-BY-4.0","sources":[{"id":"CVE-2019-6284","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2019-6284","imported":"2026-05-16T01:24:16.704Z","database_specific":{"status":"Modified"},"url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2019-6284","published":"2019-01-14T22:29:00.343Z","modified":"2024-11-21T04:46:22.063Z"}]},"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/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/2019-07/msg00051.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html"},{"type":"WEB","url":"https://github.com/sass/libsass/issues/2816"},{"type":"WEB","url":"https://github.com/sass/libsass/issues/2816"}],"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-2026-509.json"}}],"schema_version":"1.7.5"}