rz-libdemangle is a Rizin library for demangling symbols. Prior to 6bf56d3, the Rust demangler in src/rust/rust_v0.c can perform an out-of-bounds read when the demangler structure is not yet initialized. This issue is fixed in commit 6bf56d3.
https://github.com/rizinorg/rz-libdemangle/security/advisories/GHSA-4p92-mfjf-qvrc
https://github.com/rizinorg/rz-libdemangle/pull/83
https://github.com/rizinorg/rz-libdemangle/commit/6bf56d32b32547ae4cb069ccfc2d2b6c7b63a4cb