{"cve":"CVE-2020-35896","nvd":{"published":"2020-12-31T10:15:17.097","modified":"2026-06-17T03:14:33.520","status":"Modified","description":"An issue was discovered in the ws crate through 2020-09-25 for Rust. The outgoing buffer is not properly limited, leading to a remote memory-consumption attack.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-770"],"references":["https://rustsec.org/advisories/RUSTSEC-2020-0043.html","https://rustsec.org/advisories/RUSTSEC-2020-0043.html"],"products":["ws-rs_project:ws-rs"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-35896","score":0.01352,"percentile":0.71558,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-rh7x-ppxx-p34c","url":"https://osv.dev/vulnerability/GHSA-rh7x-ppxx-p34c","summary":"Insufficient size checks in ws","modified":"2023-11-08T04:03:38.052797Z","packages":[{"ecosystem":"crates.io","name":"ws","purl":"pkg:cargo/ws","ranges":["<=0.9.1"],"fixed":[]}]},{"id":"RUSTSEC-2020-0043","url":"https://osv.dev/vulnerability/RUSTSEC-2020-0043","summary":"Insufficient size checks in outgoing buffer in ws allows remote attacker to run the process out of memory","modified":"2023-11-08T04:03:38.052797Z","packages":[{"ecosystem":"crates.io","name":"ws","purl":"pkg:cargo/ws","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."]}