Apache Camel 4.15.0 < 4.18.0 Authentication Bypass (CVE-2026-23552)

critical Nessus Plugin ID 299985

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Synopsis

The remote host contains an integration framework that is affected by an authentication bypass vulnerability.

Description

The version of Apache Camel on the remote host is 4.15.0 prior to 4.18.0. It is, therefore, affected by an authentication bypass vulnerability:

- 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. (CVE-2026-23552)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Apache Camel version 4.18.0 or later.

Plugin Details

Severity: Critical

ID: 299985

File Name: apache_camel_CVE-2026-23552.nasl

Version: 1.3

Type: local

Agent: windows, macosx, unix

Family: Misc.

Published: 2/26/2026

Updated: 3/3/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-23552

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:apache:camel

Required KB Items: installed_sw/Apache Camel

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/23/2026

Vulnerability Publication Date: 2/23/2026

Reference Information

CVE: CVE-2026-23552

Detections

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