{"cve":"CVE-2020-35928","nvd":{"published":"2020-12-31T09:15:16.507","modified":"2026-06-17T03:14:37.463","status":"Modified","description":"An issue was discovered in the concread crate before 0.2.6 for Rust. Attackers can cause an ARCache<K,V> data race by sending types that do not implement Send/Sync.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","score":4.7},"cwes":["CWE-362"],"references":["https://rustsec.org/advisories/RUSTSEC-2020-0092.html","https://rustsec.org/advisories/RUSTSEC-2020-0092.html"],"products":["concread_project:concread"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-35928","score":0.00245,"percentile":0.15766,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-4xj5-vv9x-63jp","url":"https://osv.dev/vulnerability/GHSA-4xj5-vv9x-63jp","summary":"Data races in concread","modified":"2023-11-08T04:03:39.892156Z","packages":[{"ecosystem":"crates.io","name":"concread","purl":"pkg:cargo/concread","ranges":["<0.2.6"],"fixed":["0.2.6"]}]},{"id":"RUSTSEC-2020-0092","url":"https://osv.dev/vulnerability/RUSTSEC-2020-0092","summary":"Send/Sync bound needed on V in `impl Send/Sync for ARCache<K, V>`","modified":"2023-11-08T04:03:39.892156Z","packages":[{"ecosystem":"crates.io","name":"concread","purl":"pkg:cargo/concread","ranges":[">=0.0.0-0 <0.2.6"],"fixed":["0.2.6"]}]}],"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."]}