{"cve":"CVE-2026-23552","nvd":{"published":"2026-02-23T09:17:00.857","modified":"2026-06-17T10:21:46.040","status":"Analyzed","description":"Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component. \n\nThe Camel-Keycloak KeycloakSecurityPolicy does not validate the iss (issuer) claim of JWT tokens against the configured realm. A token issued by one Keycloak realm is silently accepted by a policy configured for a completely different realm, breaking tenant isolation.\nThis issue affects Apache Camel: from 4.15.0 before 4.18.0.\n\nUsers are recommended to upgrade to version 4.18.0, which fixes the issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","score":9.1},"cwes":["CWE-346"],"references":["https://camel.apache.org/security/CVE-2026-23552.html","https://github.com/oscerd/CVE-2026-23552","http://www.openwall.com/lists/oss-security/2026/02/18/7"],"products":["apache:camel"],"source":"nvd","synced_at":"2026-10-19T22:24:17.937441719+00:00"},"epss":{"cve":"CVE-2026-23552","score":0.00607,"percentile":0.49065,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-c3f3-cc42-xr9v","url":"https://osv.dev/vulnerability/GHSA-c3f3-cc42-xr9v","summary":"Apache Camel: KeycloakSecurityPolicy does not validate issuer of JWT tokens against configured realm","modified":"2026-02-25T19:56:25.472778Z","packages":[{"ecosystem":"Maven","name":"org.apache.camel:camel-keycloak","purl":"pkg:maven/org.apache.camel/camel-keycloak","ranges":[">=4.15.0 <4.18.0"],"fixed":["4.18.0"]}]}],"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."]}