PT-2026-47118 · Julia · Lua Jll

Published 2026-05-26 · Updated 2026-05-26

OSV

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.

Fix

Related Identifiers

JLSEC-2026-560

Affected Products

Lua Jll

References · 8

• https://osv.dev/vulnerability/JLSEC-2026-560 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHYZOEFDVLVAD6EEP4CDW6DNONIVVHPA · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJNJ66IFDUKWJJZXHGOLRGIA3HWWC36R · Vendor Advisory
• https://github.com/lua/lua/commit/1f3c6f4534c6411313361697d98d1145a1f030fa · Note
• https://lua-users.org/lists/lua-l/2022-02/msg00070.html · Note
• https://security.gentoo.org/glsa/202305-23 · Note
• https://lua-users.org/lists/lua-l/2022-02/msg00001.html · Note
• https://lua-users.org/lists/lua-l/2022-04/msg00009.html · Note