Cross-Realm Token Acceptance Bypass in Apache Camel Keycloak Component
CVE-2026-23552

9.1CRITICAL

Key Information:

Vendor

Apache
Status
Apache Camel
Vendor
CVE Published:
23 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-23552?

The KeycloakSecurityPolicy in the Apache Camel Keycloak component is vulnerable to a bypass that allows JWT tokens from one Keycloak realm to be accepted by policies configured for different realms, thus compromising tenant isolation. This results in the potential for unauthorized access and actions being taken across domains that are intended to be isolated. It is crucial for users to upgrade from affected versions (4.15.0 to 4.17.0) to 4.18.0 to mitigate this issue.

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Affected Version(s)

Apache Camel 4.15.0 < 4.18.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-23552 - Proof of Concept

References

https://camel.apache.org/security/CVE-2026-23552.html
vendor-advisory
https://github.com/oscerd/CVE-2026-23552
exploit

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Andrea Cosentino
Andrea Cosentino
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