{"cve":"CVE-2021-30455","nvd":{"published":"2021-04-07T22:15:15.177","modified":"2026-06-17T03:50:16.623","status":"Modified","description":"An issue was discovered in the id-map crate through 2021-02-26 for Rust. A double free can occur in IdMap::clone_from upon a .clone panic.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-415"],"references":["https://rustsec.org/advisories/RUSTSEC-2021-0052.html","https://rustsec.org/advisories/RUSTSEC-2021-0052.html"],"products":["id-map_project:id-map"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-30455","score":0.01139,"percentile":0.66617,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8gmx-cpcg-f8h5","url":"https://osv.dev/vulnerability/GHSA-8gmx-cpcg-f8h5","summary":"Double-free in id-map","modified":"2024-03-15T00:05:24.656544Z","packages":[{"ecosystem":"crates.io","name":"id-map","purl":"pkg:cargo/id-map","ranges":["<=0.2.1"],"fixed":[]}]},{"id":"GHSA-rccq-j2m7-8fwr","url":"https://osv.dev/vulnerability/GHSA-rccq-j2m7-8fwr","summary":"Double-free in id-map","modified":"2024-03-15T00:05:24.656544Z","packages":[{"ecosystem":"crates.io","name":"id-map","purl":"pkg:cargo/id-map","ranges":["<=0.2.1"],"fixed":[]}]},{"id":"GHSA-vfqx-hv88-f9cv","url":"https://osv.dev/vulnerability/GHSA-vfqx-hv88-f9cv","summary":"Double-free in id-map","modified":"2024-03-15T00:05:24.656544Z","packages":[{"ecosystem":"crates.io","name":"id-map","purl":"pkg:cargo/id-map","ranges":["<=0.2.1"],"fixed":[]}]},{"id":"RUSTSEC-2021-0052","url":"https://osv.dev/vulnerability/RUSTSEC-2021-0052","summary":"Multiple functions can cause double-frees","modified":"2024-03-15T00:05:24.656544Z","packages":[{"ecosystem":"crates.io","name":"id-map","purl":"pkg:cargo/id-map","ranges":[">=0.0.0-0"],"fixed":[]}]}],"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."]}