EUVD-2026-30895
GHSA-8364-hfqj-pwm6
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionNVD
Camel-CXF and Camel-Knative Message Header Injection via Missing Inbound Filtering
The CXF and Knative HeaderFilterStrategy implementations (CxfRsHeaderFilterStrategy in camel-cxf-rest, CxfHeaderFilterStrategy in camel-cxf-transport, and KnativeHttpHeaderFilterStrategy in camel-knative-http) only filter outbound Camel-internal headers via setOutFilterStartsWith, while not configuring inbound filtering via setInFilterStartsWith. As a result, an unauthenticated attacker can inject Camel-internal headers (e.g. CamelExecCommandExecutable, CamelFileName) via HTTP requests to CXF-RS or CXF-SOAP endpoints. When a route forwards messages from these endpoints to header-driven components such as camel-exec or camel-file, the injected headers override configured values, enabling remote code execution or arbitrary file writes. This is the same pattern that was previously addressed in camel-undertow (CVE-2025-30177), the broader incoming-header filter (CVE-2025-27636 and CVE-2025-29891), and non-HTTP strategies (CVE-2026-40453).
This issue affects Apache Camel: from 3.18.0 before 4.14.6, from 4.15.0 before 4.18.2.
Users are recommended to upgrade to version 4.19.0, which fixes the issue. If users are on the 4.18.x LTS releases stream, then they are suggested to upgrade to 4.18.2. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6.
AnalysisAI
Remote code execution in Apache Camel 3.18.0-4.14.5 and 4.15.0-4.18.1 stems from CXF and Knative HeaderFilterStrategy implementations filtering only outbound Camel-internal headers while leaving inbound traffic unfiltered, letting unauthenticated attackers inject control headers such as CamelExecCommandExecutable and CamelFileName through HTTP requests to CXF-RS, CXF-SOAP, or Knative HTTP endpoints. When such routes pipe into header-driven components like camel-exec or camel-file, the injected headers override configured values, yielding RCE or arbitrary file writes. …
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RemediationAI
Within 24 hours: Inventory systems running Apache Camel 3.18.0-4.14.5 or 4.15.0-4.18.1, prioritizing those with external network exposure. Within 7 days: Apply vendor security patch to all affected instances and confirm successful remediation. …
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