CVE-2026-88901

/// Technical description

Improper Restriction of XML External Entity Reference vulnerability in Apache Camel.

This issue affects Apache Camel: from 4.7.0 before 4.18.5, from 4.19.0 before 4.22.1.

Improper Restriction of XML External Entity Reference in the Smooks component (camel-smooks) in Apache Camel allows an attacker who supplies the XML message body to read local files or issue requests to internal network locations via an external entity declaration in that body. This issue affects Apache Camel: from 4.7.0 before 4.18.5, from 4.19.0 before 4.22.1. The Smooks data format (.unmarshal().smooks(...)) and the Smooks component (smooks:) parse the incoming XML body with the reader Smooks resolves by default, which is the Woodstox SAX parser. That reader resolves external general and parameter entities and loads external DTDs, and camel-smooks applied none of the parser hardening that the other Camel XML components apply. A DOCTYPE with an external subset, or an external general entity, declared in the XM

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References