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TI-2026-18973 Aliases CVE-2026-23552GHSA-c3f3-cc42-xr9v

Apache Camel: Camel-Keycloak: Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy

Priority HIGH 78CWE-346Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-346.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00607 49th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed Apache Camel (Apache Software Foundation): 4.18.0org.apache.camel:camel-keycloak (Maven): 4.18.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Camel4.15.0 to before 4.18.04.18.0Patch availableCNA
—org.apache.camel:camel-keycloak (Maven)4.15.0 to before 4.18.04.18.0Patch availableGHSA-c3f3-cc42-xr9v
  • Apache Camel VendorApache Affected 4.15.0 to before 4.18.0 Fixed in 4.18.0 Patch available CNA
  • org.apache.camel:camel-keycloak (Maven) Vendor— Affected 4.15.0 to before 4.18.0 Fixed in 4.18.0 Patch available GHSA-c3f3-cc42-xr9v

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:*4.15.0 to before 4.18.0VulnerableApache
  • cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:* Versions 4.15.0 to before 4.18.0 Vulnerable ·Apache

Remediation

  • Fix · CNA Apache Camel (Apache Software Foundation) Fixed in 4.18.0
  • Fix · GHSA-c3f3-cc42-xr9v org.apache.camel:camel-keycloak (Maven) Fixed in 4.18.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23552
  2. 2026-10-03 Alias added: GHSA-c3f3-cc42-xr9v

References

Exploit 1

Advisory 3

Other 3

  • TI-2026-76322 Unsafe deserialization in Apache Camel camel-hazelcast CVSS 4.0CRITICAL 10.0
  • TI-2026-76339 Path traversal in Apache Camel azure-files component CVSS 3.1CRITICAL 9.1
  • TI-2026-76330 Path traversal in Apache Camel FTP consumer escapes polled directory CVSS 3.1CRITICAL 9.1
  • TI-2025-20435 Apache Camel: Camel Message Header Injection via Improper Filtering CVSS 3.1MEDIUM 5.6
  • TI-2026-34899 Apache Camel: Camel-CXF Message Header Injection via Missing Inbound Filtering CVSS 3.1CRITICAL 9.8
  • TI-2026-25849 Mass assignment in Apache Camel CVSS 3.1CRITICAL 10.0
See all 116 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences