{"cve":"CVE-2020-35861","nvd":{"published":"2020-12-31T10:15:14.987","modified":"2026-06-17T03:14:29.013","status":"Modified","description":"An issue was discovered in the bumpalo crate before 3.2.1 for Rust. The realloc feature allows the reading of unknown memory. Attackers can potentially read cryptographic keys.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-125"],"references":["https://rustsec.org/advisories/RUSTSEC-2020-0006.html","https://rustsec.org/advisories/RUSTSEC-2020-0006.html"],"products":["bumpalo_project:bumpalo"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-35861","score":0.01509,"percentile":0.7443,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-vqx7-pw4r-29rr","url":"https://osv.dev/vulnerability/GHSA-vqx7-pw4r-29rr","summary":"Out of bounds read in bumpalo","modified":"2023-11-08T04:03:36.095714Z","packages":[{"ecosystem":"crates.io","name":"bumpalo","purl":"pkg:cargo/bumpalo","ranges":[">=3.0.0 <3.2.1"],"fixed":["3.2.1"]}]},{"id":"RUSTSEC-2020-0006","url":"https://osv.dev/vulnerability/RUSTSEC-2020-0006","summary":"Flaw in `realloc` allows reading unknown memory","modified":"2023-11-08T04:03:36.095714Z","packages":[{"ecosystem":"crates.io","name":"bumpalo","purl":"pkg:cargo/bumpalo","ranges":[">=3.0.0 <3.2.1"],"fixed":["3.2.1"]}]}],"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."]}