Vulnerability DatabaseCVE-2026-23552

CVE-2026-23552:
Java vulnerability analysis and mitigation

Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component.

The 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. This issue affects Apache Camel: from 4.15.0 before 4.18.0.

Users are recommended to upgrade to version 4.18.0, which fixes the issue.

Source: NVD

Related Java vulnerabilities:

CVE ID	Severity	Score	Technologies	Component name	CISA KEV exploit	Has fix	Published date
CVE-2026-40180	HIGH	7.7	Java	io.quarkiverse.openapi.generator:quarkus-openapi-generator	No	Yes	Apr 10, 2026
CVE-2026-39304	HIGH	7.5	Java	log4j-jcl	No	Yes	Apr 10, 2026
CVE-2026-22750	HIGH	7.5	Java	org.springframework.cloud:spring-cloud-gateway	No	Yes	Apr 10, 2026
CVE-2026-34500	MEDIUM	6.5	Java	tomcat6-jsp-2.1-api	No	Yes	Apr 09, 2026
CVE-2026-34481	MEDIUM	6.3	Java	flink-2.1	No	Yes	Apr 10, 2026

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CVE-2026-23552: Java vulnerability analysis and mitigation