{"id":"CVE-2019-15545","aliases":["GHSA-4q4x-67hx-5mpg","RUSTSEC-2019-0004"],"url":"https://o3.security/vulnerability/CVE-2019-15545","summary":"Failure to properly verify ed25519 signatures in libp2p-core","details":"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.","published":"2019-08-26T18:15:12.670Z","modified":"2026-07-08T17:16:45.600409Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":{"score":0.00765,"percentile":0.5371,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"libp2p-core","fixedVersion":"0.8.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://rustsec.org/advisories/RUSTSEC-2019-0004.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-15545"},{"type":"PACKAGE","url":"https://github.com/libp2p/rust-libp2p"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T17:16:45.600409Z"}}