{"cve":"CVE-2018-20993","nvd":{"published":"2019-08-26T13:15:11.180","modified":"2026-06-17T01:53:53.910","status":"Modified","description":"An issue was discovered in the yaml-rust crate before 0.4.1 for Rust. There is uncontrolled recursion during deserialization.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-674"],"references":["https://rustsec.org/advisories/RUSTSEC-2018-0006.html","https://rustsec.org/advisories/RUSTSEC-2018-0006.html"],"products":["yaml-rust_project:yaml-rust"],"source":"nvd","synced_at":"2026-10-19T20:58:39.700375520+00:00"},"epss":{"cve":"CVE-2018-20993","score":0.01411,"percentile":0.72684,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hv87-47h9-jcvq","url":"https://osv.dev/vulnerability/GHSA-hv87-47h9-jcvq","summary":"Uncontrolled recursion in rust-yaml","modified":"2023-11-08T04:00:13.493088Z","packages":[{"ecosystem":"crates.io","name":"yaml-rust","purl":"pkg:cargo/yaml-rust","ranges":["<0.4.1"],"fixed":["0.4.1"]}]},{"id":"RUSTSEC-2018-0006","url":"https://osv.dev/vulnerability/RUSTSEC-2018-0006","summary":"Uncontrolled recursion leads to abort in deserialization","modified":"2023-11-08T04:00:13.493088Z","packages":[{"ecosystem":"crates.io","name":"yaml-rust","purl":"pkg:cargo/yaml-rust","ranges":[">=0.0.0-0 <0.4.1"],"fixed":["0.4.1"]}]}],"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."]}