{"id":"CVE-2018-6521","aliases":["GHSA-qv5p-6wrc-79wg"],"url":"https://o3.security/vulnerability/CVE-2018-6521","summary":"SimpleSAMLphp Use of insecure connection charset (sqlauth module)","details":"The sqlauth module in SimpleSAMLphp before 1.15.2 relies on the MySQL utf8 charset, which truncates queries upon encountering four-byte characters. There might be a scenario in which this allows remote attackers to bypass intended access restrictions.","published":"2018-02-02T01:29:00.370Z","modified":"2026-07-08T05:55:24.393482672Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"simplesamlphp/simplesamlphp","fixedVersion":"1.15.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://simplesamlphp.org/security/201801-03"},{"type":"ADVISORY","url":"https://www.debian.org/security/2018/dsa-4127"},{"type":"EVIDENCE","url":"https://lists.debian.org/debian-lts-announce/2018/02/msg00008.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:55:24.393482672Z"}}