{"cve":"CVE-2026-1486","nvd":{"published":"2026-02-09T20:15:55.717","modified":"2026-07-15T02:18:14.947","status":"Deferred","description":"A flaw was found in Keycloak. A vulnerability exists in the jwt-authorization-grant flow where the server fails to verify if an Identity Provider (IdP) is enabled before issuing tokens. The issuer lookup mechanism (lookupIdentityProviderFromIssuer) retrieves the IdP configuration but does not filter for isEnabled=false. If an administrator disables an IdP (e.g., due to a compromise or offboarding), an entity possessing that IdP's signing key can still generate valid JWT assertions that Keycloak accepts, resulting in the issuance of valid access tokens.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-358"],"references":["https://access.redhat.com/errata/RHSA-2026:2365","https://access.redhat.com/errata/RHSA-2026:2366","https://access.redhat.com/security/cve/CVE-2026-1486","https://bugzilla.redhat.com/show_bug.cgi?id=2433347","https://access.redhat.com/errata/RHSA-2026:2365"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:22:27.261130201+00:00"},"epss":{"cve":"CVE-2026-1486","score":0.005,"percentile":0.42829,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-37gf-gmxv-74wv","url":"https://osv.dev/vulnerability/GHSA-37gf-gmxv-74wv","summary":"Keycloak fails to verify if an Identity Provider (IdP) is enabled before issuing tokens","modified":"2026-02-13T22:00:52.187330Z","packages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","purl":"pkg:maven/org.keycloak/keycloak-services","ranges":[">=26.5.0 <26.5.3"],"fixed":["26.5.3"]},{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","purl":"pkg:maven/org.keycloak/keycloak-services","ranges":["<26.4.9"],"fixed":["26.4.9"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}