{"cve":"CVE-2020-35886","nvd":{"published":"2020-12-31T10:15:16.457","modified":"2026-06-17T03:14:32.180","status":"Modified","description":"An issue was discovered in the arr crate through 2020-08-25 for Rust. An attacker can smuggle non-Sync/Send types across a thread boundary to cause a data race.","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-2020-0034.html","https://rustsec.org/advisories/RUSTSEC-2020-0034.html"],"products":["arr_project:arr"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-35886","score":0.00194,"percentile":0.09153,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-36xw-hgfv-jwm7","url":"https://osv.dev/vulnerability/GHSA-36xw-hgfv-jwm7","summary":"Multiple security issues including data race, buffer overflow, and uninitialized memory drop in arr","modified":"2024-03-15T00:05:27.030752Z","packages":[{"ecosystem":"crates.io","name":"arr","purl":"pkg:cargo/arr","ranges":["<=0.6.1"],"fixed":[]}]},{"id":"GHSA-c7fw-cr3w-wvfc","url":"https://osv.dev/vulnerability/GHSA-c7fw-cr3w-wvfc","summary":"Multiple security issues including data race, buffer overflow, and uninitialized memory drop in arr","modified":"2024-03-15T00:05:27.030752Z","packages":[{"ecosystem":"crates.io","name":"arr","purl":"pkg:cargo/arr","ranges":["<=0.6.1"],"fixed":[]}]},{"id":"GHSA-fhvj-7f9p-w788","url":"https://osv.dev/vulnerability/GHSA-fhvj-7f9p-w788","summary":"Multiple security issues including data race, buffer overflow, and uninitialized memory drop in arr","modified":"2024-03-15T00:05:27.030752Z","packages":[{"ecosystem":"crates.io","name":"arr","purl":"pkg:cargo/arr","ranges":["<=0.6.1"],"fixed":[]}]},{"id":"RUSTSEC-2020-0034","url":"https://osv.dev/vulnerability/RUSTSEC-2020-0034","summary":"Multiple security issues including data race, buffer overflow, and uninitialized memory drop","modified":"2024-03-15T00:05:27.030752Z","packages":[{"ecosystem":"crates.io","name":"arr","purl":"pkg:cargo/arr","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."]}