{"cve":"CVE-2020-36454","nvd":{"published":"2021-08-08T06:15:07.670","modified":"2026-06-17T03:15:31.577","status":"Modified","description":"An issue was discovered in the parc crate through 2020-11-14 for Rust. LockWeak<T> has an unconditional implementation of Send without trait bounds on T.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1},"cwes":["CWE-362"],"references":["https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/parc/RUSTSEC-2020-0134.md","https://rustsec.org/advisories/RUSTSEC-2020-0134.html","https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/parc/RUSTSEC-2020-0134.md","https://rustsec.org/advisories/RUSTSEC-2020-0134.html"],"products":["parc_project:parc"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2020-36454","score":0.00833,"percentile":0.57647,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-29v7-3v4c-gf38","url":"https://osv.dev/vulnerability/GHSA-29v7-3v4c-gf38","summary":"Data races in parc","modified":"2023-11-08T04:03:45.827550Z","packages":[{"ecosystem":"crates.io","name":"parc","purl":"pkg:cargo/parc","ranges":["<=1.0.1"],"fixed":[]}]},{"id":"GHSA-xwxc-j97j-84gf","url":"https://osv.dev/vulnerability/GHSA-xwxc-j97j-84gf","summary":"Race condition in Parc","modified":"2023-11-08T04:03:45.827550Z","packages":[{"ecosystem":"crates.io","name":"parc","purl":"pkg:cargo/parc","ranges":["<=1.0.1"],"fixed":[]}]},{"id":"RUSTSEC-2020-0134","url":"https://osv.dev/vulnerability/RUSTSEC-2020-0134","summary":"`LockWeak<T>` allows to create data race to `T`.","modified":"2023-11-08T04:03:45.827550Z","packages":[{"ecosystem":"crates.io","name":"parc","purl":"pkg:cargo/parc","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."]}