{"id":"BIT-keycloak-2026-7307","summary":"Keycloak: keycloak: denial of service via specially crafted saml input","details":"A flaw was found in Keycloak. A remote, unauthenticated attacker can send a specially crafted XML input to the Security Assertion Markup Language (SAML) endpoint. This malicious input can cause high CPU usage and worker thread starvation, leading to a Denial of Service (DoS) where the server becomes unavailable.","aliases":["CVE-2026-7307","GHSA-p5mv-gj8j-xqgf"],"modified":"2026-09-08T08:48:07.169679740Z","published":"2026-08-25T11:42:33.470Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*","cpe:2.3:a:keycloak:keycloak:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:19594"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:19595"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:19596"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:19597"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-7307"},{"type":"ADVISORY","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2476526"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-7307"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7307.json"}],"affected":[{"package":{"name":"keycloak","ecosystem":"Bitnami","purl":"pkg:bitnami/keycloak"},"ranges":[{"type":"SEMVER","events":[{"introduced":"26.4.0"},{"fixed":"26.4.12"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/keycloak/BIT-keycloak-2026-7307.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.9.0"}