Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2026-23552

Apache Camel: KeycloakSecurityPolicy does not validate issuer of JWT tokens against configured realm
Back to all
CVE

CVE-2026-23552

Apache Camel: KeycloakSecurityPolicy does not validate issuer of JWT tokens against configured realm

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.

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
C
H
U
9.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Related Resources

No items found.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-23552, https://github.com/apache/camel/commit/c1ed776e3a4fa23d15acf4b9a48fdf758d4316ff, https://camel.apache.org/security/CVE-2026-23552.html, https://github.com/apache/camel, https://github.com/oscerd/CVE-2026-23552, https://issues.apache.org/jira/browse/CAMEL-22854, http://www.openwall.com/lists/oss-security/2026/02/18/7

Severity

9.1

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
9.1
EPSS Probability
0.0004%
EPSS Percentile
0.12094%
Introduced Version
4.17.0,4.15.0
Fix Available
4.18.0

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading