{"cve":"CVE-2020-36219","nvd":{"published":"2021-01-26T18:15:56.567","modified":"2026-06-17T03:15:07.820","status":"Modified","description":"An issue was discovered in the atomic-option crate through 2020-10-31 for Rust. Because AtomicOption<T> implements Sync unconditionally, a data race can occur.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.9},"cwes":[],"references":["https://rustsec.org/advisories/RUSTSEC-2020-0113.html","https://rustsec.org/advisories/RUSTSEC-2020-0113.html"],"products":["atomic-option_project:atomic-option"],"source":"nvd","synced_at":"2026-10-19T21:14:10.479542811+00:00"},"epss":{"cve":"CVE-2020-36219","score":0.01121,"percentile":0.66199,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8gf5-q9p9-wvmc","url":"https://osv.dev/vulnerability/GHSA-8gf5-q9p9-wvmc","summary":"Data race in atomic-option","modified":"2023-11-08T04:03:42.214536Z","packages":[{"ecosystem":"crates.io","name":"atomic-option","purl":"pkg:cargo/atomic-option","ranges":["<=0.1.2"],"fixed":[]}]},{"id":"RUSTSEC-2020-0113","url":"https://osv.dev/vulnerability/RUSTSEC-2020-0113","summary":"AtomicOption should have Send + Sync bound on its type argument.","modified":"2023-11-08T04:03:42.214536Z","packages":[{"ecosystem":"crates.io","name":"atomic-option","purl":"pkg:cargo/atomic-option","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."]}