{"id":"CVE-2019-15545","aliases":["EUVD-2021-1561","GHSA-4q4x-67hx-5mpg","RUSTSEC-2019-0004"],"status":"published","title":"Failure to properly verify ed25519 signatures in libp2p-core","description":"An issue was discovered in the libp2p-core crate before 0.8.1 for Rust. Attackers can spoof ed25519 signatures.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00765,"percentile":0.55706,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-347"],"published":"2019-05-15T12:00:00Z","modified":"2026-10-24T10:30:26Z","fixes":[{"ecosystem":"crates.io","package":"libp2p-core","fixed_in":["0.8.1","0.7.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"libp2p-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.1"}]}]},{"source":"osv","ecosystem":"crates.io","package":"libp2p-core","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.8.1"}]}]},{"source":"osv","ecosystem":"crates.io","package":"libp2p-core","ranges":[{"type":"SEMVER","events":[{"introduced":"0.3.0"},{"fixed":"0.7.1"},{"introduced":"0.8.0-0"},{"fixed":"0.8.1"}]}]}],"products":[{"vendor":"libp2p","product":"libp2p"}],"references":[{"url":"https://rustsec.org/advisories/RUSTSEC-2019-0004.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-15545","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-4q4x-67hx-5mpg"},{"url":"https://github.com/libp2p/rust-libp2p","tags":["package"]},{"url":"https://crates.io/crates/libp2p-core","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2019-15545","description":"An issue was discovered in the libp2p-core crate before 0.8.1 for Rust. Attackers can spoof ed25519 signatures.","status":"published","published":"2019-08-26T17:07:58Z","modified":"2024-08-05T00:49:13.72Z","updated_at":"2026-11-02T14:20:21.059499Z"}],"euvd":[{"id":"EUVD-2021-1561","description":"An issue was discovered in the libp2p-core crate before 0.8.1 for Rust. Attackers can spoof ed25519 signatures.","status":"published","published":"2019-08-26T17:07:58Z","modified":"2024-08-05T00:49:13Z","updated_at":"2026-11-03T02:40:35.584574Z"}],"ghsa":[{"id":"GHSA-4q4x-67hx-5mpg","title":"Failure to properly verify ed25519 signatures in libp2p-core","description":"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.","status":"published","published":"2021-08-25T20:44:08Z","modified":"2023-06-13T17:43:59Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:36:53.654352Z"}],"nvd":[{"id":"CVE-2019-15545","description":"An issue was discovered in the libp2p-core crate before 0.8.1 for Rust. Attackers can spoof ed25519 signatures.","status":"published","published":"2019-08-26T18:15:12.67Z","modified":"2026-06-17T02:20:36.253Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:05:23.725587Z"}],"osv":[{"id":"CVE-2019-15545","description":"An issue was discovered in the libp2p-core crate before 0.8.1 for Rust. Attackers can spoof ed25519 signatures.","status":"published","published":"2019-08-26T18:15:12.67Z","modified":"2026-10-24T10:30:26.28991756Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:11.361782Z"},{"id":"GHSA-4q4x-67hx-5mpg","title":"Failure to properly verify ed25519 signatures in libp2p-core","description":"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.","status":"published","published":"2021-08-25T20:44:08Z","modified":"2023-11-08T04:01:13.857415Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T15:46:37.148947Z"},{"id":"RUSTSEC-2019-0004","title":"Failure to properly verify ed25519 signatures makes any signature valid","description":"Affected versions of this crate did not properly verify ed25519 signatures.\nAny signature with a correct length was considered valid.\n\nThis allows an attacker to impersonate any node identity.","status":"published","published":"2019-05-15T12:00:00Z","modified":"2023-11-08T04:01:13.857415Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:39.492624Z"}]}}