rizinorg rz-libdemangle Rust Demangler src/rust/rust_v0.c out-of-bounds

Summaryinfo

A vulnerability classified as problematic has been found in rizinorg rz-libdemangle. This issue affects some unknown processing of the file src/rust/rust_v0.c of the component Rust Demangler. Performing a manipulation results in out-of-bounds. This vulnerability is identified as CVE-2026-45612. The attack is only possible with local access. There is not any exploit available.

Detailsinfo

A vulnerability was found in rizinorg rz-libdemangle (version now known). It has been classified as problematic. This affects some unknown processing of the file src/rust/rust_v0.c of the component Rust Demangler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-45612 since 05/12/2026. The exploitability is told to be easy. An attack has to be approached locally. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• rizinorg

Name

• rz-libdemangle

Website

• Product: https://github.com/rizinorg/rz-libdemangle/

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