Vulnerability HighRUSTSEC-2019-0004 · libp2p-core
RUSTSEC-2019-0004: Failure to properly verify ed25519 signatures makes any signature valid
Short answerA security vulnerability in the libp2p-core crate: Failure to properly verify ed25519 signatures makes any signature valid. High severity (CVSS 7.5). Fixed in 0.7.1, 0.8.1: update to a fixed version.
| Crate | libp2p-core |
|---|---|
| Type | Vulnerability |
| Affected versions | From 0.3.0 before 0.7.1; from 0.8.0 before 0.8.1. |
| Fixed in | 0.7.1, 0.8.1 |
| Severity | High, CVSS 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| Published | 2019-05-15 |
| Last changed | 2023-11-08 |
| Also known as | CVE-2019-15545, GHSA-4q4x-67hx-5mpg |
What to do
- See which version you have:
cargo tree -i libp2p-core(it also shows which of your dependencies pulls it in). - Update within your version requirement:
cargo update -p libp2p-core. If the fix is a newer major or minor than your requirement allows, raise it in Cargo.toml (for examplelibp2p-core = "0.8.1") or update the dependency that pulls it in. - Check again with
cargo audit, or paste your Cargo.lock into our Cargo.toml checker.
Details from the advisory
Affected versions of this crate did not properly verify ed25519 signatures. Any signature with a correct length was considered valid.
This allows an attacker to impersonate any node identity.
References
- Package: crates.io/crates/libp2p-core
- Advisory: rustsec.org/advisories/RUSTSEC-2019-0004.html
From the RustSec Advisory Database (CC0-1.0) via the OSV export, downloaded Oct 24, 2026. Severity score computed from the published CVSS vector.
Other advisories for libp2p-core
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