{"id":"JLSEC-2026-553","details":"Lua 5.3.5 has a use-after-free in lua_upvaluejoin in lapi.c. For example, a crash outcome might be achieved by an attacker who is able to trigger a debug.upvaluejoin call in which the arguments have certain relationships.","modified":"2026-05-26T20:00:07.413845201Z","published":"2026-05-26T19:45:06.761Z","upstream":["CVE-2019-6706"],"database_specific":{"sources":[{"database_specific":{"status":"Modified"},"imported":"2026-05-26T02:05:09.380Z","id":"CVE-2019-6706","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2019-6706","modified":"2024-11-21T04:46:59.147Z","published":"2019-01-23T19:29:00.447Z","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2019-6706"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"http://lua-users.org/lists/lua-l/2019-01/msg00039.html"},{"type":"WEB","url":"http://lua-users.org/lists/lua-l/2019-01/msg00039.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/151335/Lua-5.3.5-Use-After-Free.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/151335/Lua-5.3.5-Use-After-Free.html"},{"type":"WEB","url":"https://access.redhat.com/security/cve/cve-2019-6706"},{"type":"WEB","url":"https://access.redhat.com/security/cve/cve-2019-6706"},{"type":"WEB","url":"https://github.com/Lua-Project/cve-analysis/blob/a43c9ccd00274b31fa2f24c6c8f20ce36655682d/CVE-2019-6706.pdf"},{"type":"WEB","url":"https://github.com/Lua-Project/cve-analysis/blob/a43c9ccd00274b31fa2f24c6c8f20ce36655682d/CVE-2019-6706.pdf"},{"type":"WEB","url":"https://github.com/lua/lua/commit/89aee84cbc9224f638f3b7951b306d2ee8ecb71e"},{"type":"WEB","url":"https://github.com/lua/lua/commit/89aee84cbc9224f638f3b7951b306d2ee8ecb71e"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html"}],"affected":[{"package":{"name":"Lua_jll","ecosystem":"Julia","purl":"pkg:julia/Lua_jll?uuid=a4086b1d-a96a-5d6b-8e4f-2030e6f25ba6"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.3.6+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-553.json"}}],"schema_version":"1.7.5"}