{"id":"GHSA-hhm8-2j4g-mpgg","aliases":["CVE-2018-6519"],"title":"SimpleSAMLphp SAML2 library Regular Expression Denial of Service vulnerability","titleSource":"OSV","descriptionSource":"OSV","declaredSeverity":"HIGH","description":"The SAML2 library before 1.10.4, 2.x before 2.3.5, and 3.x before 3.1.1 in SimpleSAMLphp has a Regular Expression Denial of Service vulnerability for fraction-of-seconds data in a timestamp.","severity":"high","score":7.5,"published":"2022-05-14T02:57:33.000Z","modified":"2024-04-25T21:26:45.106Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"simplesamlphp/saml2","sources":[{"name":"OSV · GHSA-hhm8-2j4g-mpgg","url":"https://osv.dev/vulnerability/GHSA-hhm8-2j4g-mpgg"}],"ranges":[{"events":[{"introduced":"0"},{"fixed":"1.10.4"}],"type":"ECOSYSTEM"}],"versions":["v0.1.0","v0.1.0-alpha","v0.3.0","v0.4.0","v0.4.1","v0.4.2","v0.5.0","v0.6.0","v0.6.1","v0.6.2","v0.6.3","v0.6.4","v0.7.0","v0.7.1","v0.8.0","v0.8.1","v1.0.0","v1.1.0","v1.10","v1.10.1","v1.10.2","v1.10.3","v1.2.0","v1.3.0","v1.3.1","v1.3.2","v1.4.0","v1.5.0","v1.5.1","v1.5.2","v1.5.3","v1.5.4","v1.6.0","v1.6.1","v1.7.0","v1.7.1","v1.7.2","v1.8","v1.8.1","v1.8.2","v1.9","v1.9.1","v1.9.2"],"fixed":["1.10.4"]},{"ecosystem":"Packagist","name":"simplesamlphp/saml2","sources":[{"name":"OSV · GHSA-hhm8-2j4g-mpgg","url":"https://osv.dev/vulnerability/GHSA-hhm8-2j4g-mpgg"}],"ranges":[{"events":[{"introduced":"2.0"},{"fixed":"2.3.5"}],"type":"ECOSYSTEM"}],"versions":["v2.0.0","v2.0.1","v2.1","v2.2","v2.3","v2.3.1","v2.3.2","v2.3.3","v2.3.4"],"fixed":["2.3.5"]},{"ecosystem":"Packagist","name":"simplesamlphp/saml2","sources":[{"name":"OSV · GHSA-hhm8-2j4g-mpgg","url":"https://osv.dev/vulnerability/GHSA-hhm8-2j4g-mpgg"}],"ranges":[{"events":[{"introduced":"3.0"},{"fixed":"3.1.1"}],"type":"ECOSYSTEM"}],"versions":["v3.0.0","v3.0.1","v3.0.2","v3.0.3","v3.1.0"],"fixed":["3.1.1"]}],"sourceAffected":[],"references":["https://nvd.nist.gov/vuln/detail/CVE-2018-6519","https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/saml2/CVE-2018-6519.yaml","https://github.com/simplesamlphp/simplesamlphp","https://simplesamlphp.org/security/201801-01","https://www.debian.org/security/2018/dsa-4127"],"sources":[{"name":"OSV","id":"GHSA-hhm8-2j4g-mpgg","modified":"2024-04-25T21:26:45.106450Z","url":"https://osv.dev/vulnerability/GHSA-hhm8-2j4g-mpgg"}],"assessments":[{"source":"OSV","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5}],"products":[],"remediation":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T21:15:31.530Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}