{"id":"BIT-keycloak-2026-4325","summary":"Keycloak: keycloak: replay of action tokens via improper handling of single-use entries","details":"A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an attacker to delete arbitrary single-use entries, which can enable the replay of consumed action tokens, such as password reset links. This could lead to unauthorized access or account compromise.","aliases":["CVE-2026-4325","GHSA-rx66-hj7g-28h7"],"modified":"2026-09-08T08:48:07.114615450Z","published":"2026-08-25T11:42:25.639Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:text-only:*:*:*","cpe:2.3:a:keycloak:keycloak:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6475"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6476"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6477"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6478"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-4325"},{"type":"ADVISORY","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2448351"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4325"}],"affected":[{"package":{"name":"keycloak","ecosystem":"Bitnami","purl":"pkg:bitnami/keycloak"},"ranges":[{"type":"SEMVER","events":[{"introduced":"26.2.0"},{"fixed":"26.2.1"},{"introduced":"26.2.15"},{"fixed":"26.3.0"},{"introduced":"26.4.0"},{"fixed":"26.4.1"},{"introduced":"26.4.11"},{"fixed":"26.5.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/keycloak/BIT-keycloak-2026-4325.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N"}]}],"schema_version":"1.9.0"}