{"cve":"CVE-2022-50237","nvd":{"published":"2025-07-28T02:15:24.540","modified":"2026-06-17T05:23:02.680","status":"Deferred","description":"The ed25519-dalek crate before 2 for Rust allows a double public key signing function oracle attack. The Keypair implementation leads to a simple computation for extracting a private key.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","score":5.9},"cwes":["CWE-497"],"references":["https://crates.io/crates/ed25519-dalek","https://github.com/MystenLabs/ed25519-unsafe-libs","https://rustsec.org/advisories/RUSTSEC-2022-0093.html"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:05:46.678065081+00:00"},"epss":{"cve":"CVE-2022-50237","score":0.00217,"percentile":0.12217,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-w5vr-6qhr-36cc","url":"https://osv.dev/vulnerability/GHSA-w5vr-6qhr-36cc","summary":"`ed25519-dalek` Double Public Key Signing Function Oracle Attack","modified":"2026-02-04T03:12:24.206854Z","packages":[{"ecosystem":"crates.io","name":"ed25519-dalek","purl":"pkg:cargo/ed25519-dalek","ranges":["<2.0.0"],"fixed":["2.0.0"]}]},{"id":"RUSTSEC-2022-0093","url":"https://osv.dev/vulnerability/RUSTSEC-2022-0093","summary":"Double Public Key Signing Function Oracle Attack on `ed25519-dalek`","modified":"2025-10-28T06:02:18Z","packages":[{"ecosystem":"crates.io","name":"ed25519-dalek","purl":"pkg:cargo/ed25519-dalek","ranges":[">=0.0.0-0 <2.0.0"],"fixed":["2.0.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}