{"action":"Upgrade org.keycloak:keycloak-server-spi-private to 26.5.2 or later.","affected":[{"fixed":"26.5.2","introduced":"0"}],"component":"org.keycloak:keycloak-server-spi-private","cve_ids":["CVE-2026-0871"],"ecosystem":"Maven","epss":0.00349,"exploited":false,"fixed_versions":["26.5.2"],"ghsa_id":"GHSA-v4jw-m6rm-399h","id":"tcs_01M5N9D6DA18V1D2Y29MDSCMDE","modified_at":"2026-08-26T01:11:34.047363909Z","published_at":"2026-02-27T09:30:29Z","references":["https://osv.dev/vulnerability/GHSA-v4jw-m6rm-399h","https://nvd.nist.gov/vuln/detail/CVE-2026-0871","https://github.com/keycloak/keycloak/issues/45873","https://github.com/keycloak/keycloak/commit/9d0f679ecea405958f167fcd0f4a6db6ae32c3fa","https://access.redhat.com/errata/RHSA-2026:2365","https://access.redhat.com/errata/RHSA-2026:2366","https://access.redhat.com/security/cve/CVE-2026-0871","https://bugzilla.redhat.com/show_bug.cgi?id=2428881","https://github.com/keycloak/keycloak"],"severity":{"label":"medium","score":4.9},"sources":[{"source":"osv","source_id":"GHSA-v4jw-m6rm-399h","url":"https://osv.dev/vulnerability/GHSA-v4jw-m6rm-399h"}],"summary":"Keycloak Server Private SPI: Improper Access Control Allows Administrators to Bypass Attribute Visibility Restrictions and Modify Unmanaged User Profile Attributes"}