Rust advisories / olm-sys
Vulnerability HighRUSTSEC-2024-0368 · olm-sys
RUSTSEC-2024-0368: olm-sys: wrapped library unmaintained, potentially vulnerable
Short answerA security vulnerability in the olm-sys crate: olm-sys: wrapped library unmaintained, potentially vulnerable. GitHub rates it High. No fixed version: replace the crate or remove the affected code path.
| Crate | olm-sys |
|---|---|
| Type | Vulnerability (crypto-failure) |
| Affected versions | Every version. |
| Fixed in | none |
| Severity | High (GitHub rating) |
| Published | 2024-09-02 |
| Last changed | 2026-02-04 |
| Also known as | GHSA-p2q9-36vw-c468 |
What to do
- Find who pulls it in:
cargo tree -i olm-sys. - Avoid the affected API, or replace the crate.
Details from the advisory
After several cryptographic vulnerabilities in libolm were disclosed publicly, the Matrix Foundation has officially deprecated the library. olm-sys is a thin wrapper around libolm and is now deprecated and potentially vulnerable in kind.
Users of olm-sys and its higher-level abstraction, olm-rs, are highly encouraged to switch to vodozemac as soon as possible. It is the successor effort to libolm and is written in Rust.
References
- Package: crates.io/crates/olm-sys
- Advisory: rustsec.org/advisories/RUSTSEC-2024-0368.html
- Report: gitlab.gnome.org/BrainBlasted/olm-sys/-/issues/12
- Web: matrix.org/blog/2024/08/libolm-deprecation/
From the RustSec Advisory Database (CC0-1.0) via the OSV export, downloaded Oct 24, 2026. Severity score computed from the published CVSS vector.
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