CVE-2026-23552

CRITICAL EPSS 31.7%
Published Feb 23, 20264mo ago · Modified Jun 17, 20261w ago
9.1 CVSS 3.1
Critical
Find Similar
Published Feb 23, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
9.1
Exploitability
3.9
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
31.7% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-346

Affected Products 1

VendorProductVersionRange
apachecamel*≥4.15.0  –  <4.18.0

References 3

  • openwall.com http://www.openwall.com/lists/oss-security/2026/02/18/7
    Mailing ListThird Party Advisory
  • camel.apache.org https://camel.apache.org/security/CVE-2026-23552.html
    Vendor Advisory
  • github.com https://github.com/oscerd/CVE-2026-23552
    ExploitThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.