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NVD Vulnerability Details :

CVE-2026-23552

Awaiting Analysis

Source-security@apache.org

Published At-23 Feb, 2026 | 09:17

Updated At-23 Feb, 2026 | 18:13

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	9.1	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Type: Secondary

Version: 3.1

Base score: 9.1

Base severity: CRITICAL

Vector:

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CWE ID	Type	Source
CWE-346	Secondary	security@apache.org

CWE ID: CWE-346

Type: Secondary

Source: security@apache.org

References

Hyperlink	Source	Resource
https://camel.apache.org/security/CVE-2026-23552.html	security@apache.org	N/A
https://github.com/oscerd/CVE-2026-23552	security@apache.org	N/A
http://www.openwall.com/lists/oss-security/2026/02/18/7	af854a3a-2127-422b-91ae-364da2661108	N/A