{"id":"CLEANSTART-2026-CX04394","summary":"It was found that Keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations","details":"Security vulnerability affects the keycloak package. It was found that Keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations.","modified":"2026-10-31T01:02:01.592299236Z","published":"2026-10-30T17:27:30.693406Z","upstream":["CVE-2017-12158"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-CX04394.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2017-12158"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-12158"}],"affected":[{"package":{"name":"keycloak","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/keycloak"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"26.5.0-r1"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-CX04394.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}