CVE-2026-23552— Apache Camel: Camel-Keycloak: Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy
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I. Basic Information for CVE-2026-23552
Vulnerability Information
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Vulnerability Title
Apache Camel: Camel-Keycloak: Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy
Source: NVD (National Vulnerability Database)
Vulnerability Description
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 (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
源验证错误
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache Camel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Camel是美国阿帕奇（Apache）基金会的一套开源的基于Enterprise Integration Pattern(企业整合模式，简称EIP)的集成框架。该框架提供企业集成模式的Java对象（POJO）的实现，且通过应用程序接口来配置路由和中介的规则。 Apache Camel 4.18.0之前版本存在安全漏洞，该漏洞源于KeycloakSecurityPolicy未验证JWT令牌的iss声明，可能导致跨域令牌接受绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Apache Software Foundation | Apache Camel | 4.15.0 ~ 4.18.0 | - |
II. Public POCs for CVE-2026-23552
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | CVE-2026-23552 - Cross-Realm Token Acceptance in camel-keycloak | https://github.com/oscerd/CVE-2026-23552 | POC Details |
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