{"cve":"CVE-2009-4269","nvd":{"published":"2010-08-16T20:00:01.183","modified":"2026-06-16T23:13:21.757","status":"Modified","description":"The password hash generation algorithm in the BUILTIN authentication functionality for Apache Derby before 10.6.1.0 performs a transformation that reduces the size of the set of inputs to SHA-1, which produces a small search space that makes it easier for local and possibly remote attackers to crack passwords by generating hash collisions, related to password substitution.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-310"],"references":["http://blogs.sun.com/kah/entry/derby_10_6_1_has","http://db.apache.org/derby/releases/release-10.6.1.0.cgi#Fix+for+Security+Bug+CVE-2009-4269","http://marc.info/?l=apache-db-general&m=127428514905504&w=1","http://marcellmajor.com/derbyhash.html","http://secunia.com/advisories/42948"],"products":["apache:derby"],"source":"nvd","synced_at":"2026-10-19T19:56:26.512081652+00:00"},"epss":{"cve":"CVE-2009-4269","score":0.01426,"percentile":0.72961,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-fh32-35w2-rxcc","url":"https://osv.dev/vulnerability/GHSA-fh32-35w2-rxcc","summary":"Use of Password Hash With Insufficient Computational Effort in Apache Derby","modified":"2024-12-08T05:27:04.833334Z","packages":[{"ecosystem":"Maven","name":"org.apache.derby:derby","purl":"pkg:maven/org.apache.derby/derby","ranges":["<10.6.1.0"],"fixed":["10.6.1.0"]}]}],"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."]}