The Intel EPT paging code uses an optimization to defer flushing of any cached EPT state until the p2m lock is dropped, so that multiple modifications...
Description
The Intel EPT paging code uses an optimization to defer flushing of any cached EPT state until the p2m lock is dropped, so that multiple modifications done under the same locked region only issue a single flush
Remediation
Apply vendor security updates immediately. Monitor for exploitation attempts and review access logs.
---METADATA---
VENDOR: Apache
PRODUCT: Camel Keycloak
AFFECTED_VERSIONS: 4.15.0 through 4.17.x
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Description Summary:
Apache Camel Keycloak fails to validate the issuer claim of JWT tokens, allowing tokens from one realm to be accepted by another, thereby breaking tenant isolation.
Executive Summary:
A critical authentication bypass in the Apache Camel Keycloak component allows attackers to use tokens from unauthorized realms to access protected resources, compromising multi-tenant security.
Vulnerability Details
CVE-ID: CVE-2026-23552
Affected Software: Apache Camel Keycloak
Affected Versions: 4.15.0 before 4.18.0
Vulnerability: The
KeycloakSecurityPolicydoes not validate theiss(issuer) claim of JWT tokens against the configured realm. This allows an authenticated user from one Keycloak realm to present a valid token to a policy configured for a different realm, which is then incorrectly accepted.Business Impact
This flaw completely breaks tenant isolation in multi-tenant environments. An attacker with access to any realm on a Keycloak server can gain unauthorized access to data and services in every other realm managed by the same Apache Camel policy. The CVSS score is 9.1.
Remediation Plan
Immediate Action: Upgrade Apache Camel to version 4.18.0 or later to ensure that JWT issuer claims are properly validated against the configured realm.
Proactive Monitoring: Audit application logs for successful logins where the token's issuer does not match the expected tenant realm.
Compensating Controls: Implement manual issuer validation in application logic or use a gateway/proxy to verify the
issclaim before traffic reaches the Camel component.Exploitation Status
Public Exploit Available: false
Analyst Notes: As of Feb 23, 2026, there is no public information indicating active exploitation. This vulnerability is highly critical for organizations operating SaaS or multi-tenant platforms.
Analyst Recommendation
The failure to validate token issuers is a severe security gap. Organizations using Apache Camel with Keycloak must move to version 4.18.0 immediately to restore the security boundaries between their tenants.