Severity:
CVSS 3.1: 4.8 (medium) CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected versions:
- Apache Camel (org.apache.camel:camel-keycloak) 4.15.0 before 4.18.5
- Apache Camel (org.apache.camel:camel-keycloak) 4.19.0 before 4.22.1
- Apache Camel (org.apache.camel:camel-keycloak) 4.18.5 unaffected
- Apache Camel (org.apache.camel:camel-keycloak) 4.22.1 unaffected
- Apache Camel (org.apache.camel:camel-keycloak) 4.23.0 unaffected
Description:
Improper Authentication vulnerability in Apache Camel Keycloak component.
This issue affects Apache Camel: from 4.15.0 before 4.18.5, from 4.19.0 before
4.22.1.
The security processor validated the issuer of an introspected token only when
the introspection response actually carried an iss claim. When the claim was
absent the check was skipped rather than treated as a failure, so a token that
the configured issuer did not mint could be accepted provided the introspection
endpoint answered without naming an issuer. Reaching this requires an
introspection endpoint that omits iss and accepts tokens from more than one
issuer, which is not the default Keycloak arrangement, hence the low severity;
where that arrangement exists the consequence is that the deployment
authenticates a caller it should have rejected.
Upgrade to Apache Camel 4.23.0, which fixes the issue. Users on the 4.18.x LTS
releases stream should upgrade to 4.18.5. Users on the 4.22.x LTS releases
stream should upgrade to 4.22.1. An absent iss claim is now treated as a
validation failure rather than as a reason to skip the check. For deployments
that cannot upgrade immediately, ensure the introspection endpoint returns the
iss claim, and that it serves exactly one issuer.
Solution:
Upgrade to Apache Camel 4.23.0, which fixes the issue. Users on the 4.18.x LTS
releases stream should upgrade to 4.18.5. Users on the 4.22.x LTS releases
stream should upgrade to 4.22.1. An absent iss claim is now treated as a
validation failure rather than as a reason to skip the check.
Work Arounds:
For deployments that cannot upgrade immediately, ensure the introspection
endpoint returns the iss claim, and that it serves exactly one issuer.
Credit:
Claude Security (finder)
Andrea Cosentino (remediation developer)
References:
https://camel.apache.org/security/CVE-2026-85301.html
https://issues.apache.org/jira/browse/CAMEL-24448
https://github.com/apache/camel/pull/25827
https://github.com/apache/camel/pull/25858
https://github.com/apache/camel/pull/25859
https://camel.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-85301
