{"id":"JLSEC-2026-559","details":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","modified":"2026-07-18T00:02:10.827814775Z","published":"2026-05-26T19:45:06.761Z","upstream":["CVE-2021-45985"],"database_specific":{"sources":[{"database_specific":{"status":"Analyzed"},"id":"CVE-2021-45985","imported":"2026-07-17T22:08:09.193Z","modified":"2026-06-17T04:14:21.940Z","published":"2023-04-10T09:15:07.250Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-45985","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45985"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"http://lua-users.org/lists/lua-l/2021-12/msg00019.html"},{"type":"WEB","url":"https://github.com/lua/lua/commit/cf613cdc6fa367257fc61c256f63d917350858b5"},{"type":"WEB","url":"https://www.lua.org/bugs.html#5.4.3-11"}],"affected":[{"package":{"name":"Lua_jll","ecosystem":"Julia","purl":"pkg:julia/Lua_jll?uuid=a4086b1d-a96a-5d6b-8e4f-2030e6f25ba6"},"ranges":[{"type":"SEMVER","events":[{"introduced":"5.4.3+0"},{"fixed":"5.4.4+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-559.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}