{"action":"Upgrade flex to 2.5.33-1 or later.","affected":[{"fixed":"2.5.33-1","introduced":"0"}],"component":"flex","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["2.5.33-1"],"id":"tcs_01M5N8J35H2CQAV0NANVMSTE6T","modified_at":"2026-10-22T23:47:20.911154279Z","published_at":"2006-03-29T23:02:00Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2006-0459","https://security-tracker.debian.org/tracker/CVE-2006-0459"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2006-0459","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2006-0459"}],"summary":"flex.skl in Will Estes and John Millaway Fast Lexical Analyzer Generator (flex) before 2.5.33 does not allocate enough memory for grammars containing (1) REJECT statements or (2) trailing context rule"}