{"id":"CVE-2019-16143","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-16143","generatedAt":"2026-10-28T22:21:53.472Z","title":"An issue was discovered in the blake2 crate before 0.8.1 for Rust.","description":"An issue was discovered in the blake2 crate before 0.8.1 for Rust. The BLAKE2b and BLAKE2s algorithms, when used with HMAC, produce incorrect results because the block sizes are half of the required sizes.","published":"2019-09-09T12:15:11.000Z","lastModified":"2026-06-17T02:21:45.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-327"],"affected":["blake2/blake2-rust"],"epss":{"score":0.00933,"percentile":0.6052,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://rustsec.org/advisories/RUSTSEC-2019-0019.html","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://rustsec.org/advisories/RUSTSEC-2019-0019.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-16143","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}