Answer in brief
CVE-2026-47323 records a Critical severity (CVSS 9.8) vulnerability in Camel-CXF and Camel-Knative Message Header are Vulnerable to Injection via Missing Inbound Filtering. The current sources do not mark it as known exploited. The current feed maps org.apache.camel:camel-cxf-rest (maven), org.apache.camel:camel-cxf-rest (maven), org.apache.camel:camel-cxf-rest (maven), org.apache.camel:camel-cxf-rest (maven). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps org.apache.camel:camel-cxf-rest (maven), org.apache.camel:camel-cxf-rest (maven), org.apache.camel:camel-cxf-rest (maven), org.apache.camel:camel-cxf-rest (maven). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| org.apache.camel:camel-cxf-restmaven | >=3.18.0,<4.14.6 | 4.14.6 |
| org.apache.camel:camel-cxf-restmaven | >=4.15.0,<4.18.2 | 4.18.2 |
| org.apache.camel:camel-cxf-restmaven | >=3.18.0 <4.14.6 | 4.14.6 |
| org.apache.camel:camel-cxf-restmaven | >=4.15.0 <4.18.2 | 4.18.2 |
Published upstream
May 19, 2026
Evidence: source:ghsa:source_dates:source-dates:recordSource modified
Oct 5, 2026
Evidence: source:ghsa:source_dates:source-dates:recordFirst seen by HOL
Jun 11, 2026
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.
Quoted source text, attributed separately from HOL analysis.