Critical severity9.1NVD Advisory· Published Nov 29, 2019· Updated Jun 17, 2026
CVE-2019-19391
CVE-2019-19391
Description
In LuaJIT through 2.0.5, as used in Moonjit before 2.1.2 and other products, debug.getinfo has a type confusion issue that leads to arbitrary memory write or read operations, because certain cases involving valid stack levels and > options are mishandled. NOTE: The LuaJIT project owner states that the debug libary is unsafe by definition and that this is not a vulnerability. When LuaJIT was originally developed, the expectation was that the entire debug library had no security guarantees and thus it made no sense to assign CVEs. However, not all users of later LuaJIT derivatives share this perspective
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Affected products
4- LuaJIT/LuaJITdescription
Patches
Vulnerability mechanics
References
2- github.com/LuaJIT/LuaJIT/pull/526nvdIssue TrackingPatchThird Party Advisory
- lists.debian.org/debian-lts-announce/2025/08/msg00022.htmlnvd
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