All vulnerabilities
CVE-2026-47323GHSA-8364-hfqj-pwm6

org.apache.camel:camel-cxf-rest: Camel-CXF and Camel-Knative Message Header are Vulnerable to Injection via Missing Inbound Filtering

Apache Software Foundation org.apache.camel:camel-cxf-restmavenLibraries & packages
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)1.60%Chance of exploitation activity in the next 30 days, higher than 75% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in4.14.6Also 4.18.2GitHub
Published19 May 2026Updated 5 Oct 2026CVE List

What fixes it

  • 4.14.6org.apache.camel:camel-cxf-rest, mavenGitHub<dependency><groupId>org.apache.camel</groupId><artifactId>camel-cxf-rest</artifactId><version>4.14.6</version></dependency>
  • 4.18.2org.apache.camel:camel-cxf-rest, mavenGitHub<dependency><groupId>org.apache.camel</groupId><artifactId>camel-cxf-rest</artifactId><version>4.18.2</version></dependency>
  • 4.14.6Apache CamelCVE List
  • 4.18.2Apache CamelCVE List
  • 4.14.6org.apache.camel:camel-cxf-rest, MavenOSV<dependency><groupId>org.apache.camel</groupId><artifactId>camel-cxf-rest</artifactId><version>4.14.6</version></dependency>
  • 4.18.2org.apache.camel:camel-cxf-rest, MavenOSV<dependency><groupId>org.apache.camel</groupId><artifactId>camel-cxf-rest</artifactId><version>4.18.2</version></dependency>

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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.

Text from GitHub Advisory Database

Affected versions 61

  • org.apache.camel:camel-cxf-rest, maven>= 3.18.0, < 4.14.6GitHub
  • org.apache.camel:camel-cxf-rest, maven>= 4.15.0, < 4.18.2GitHub
  • Apache Camelaffected: 3.18.0 before 4.14.6CVE List
  • Apache Camelaffected: 4.15.0 before 4.18.2CVE List
  • org.apache.camel:camel-cxf-rest, Mavenfrom 3.18.0, fixed in 4.14.6OSV
  • org.apache.camel:camel-cxf-rest, Maven3.18.0OSV
  • org.apache.camel:camel-cxf-rest, Maven3.18.1OSV
  • org.apache.camel:camel-cxf-rest, Maven3.18.2OSV
  • org.apache.camel:camel-cxf-rest, Maven3.18.3OSV
  • org.apache.camel:camel-cxf-rest, Maven3.18.4OSV
  • org.apache.camel:camel-cxf-rest, Maven3.18.5OSV
  • org.apache.camel:camel-cxf-rest, Maven3.18.6OSV
  • org.apache.camel:camel-cxf-rest, Maven3.18.7OSV
  • org.apache.camel:camel-cxf-rest, Maven3.18.8OSV
  • org.apache.camel:camel-cxf-rest, Maven3.19.0OSV
  • org.apache.camel:camel-cxf-rest, Maven3.20.0OSV
  • org.apache.camel:camel-cxf-rest, Maven3.20.1OSV
  • org.apache.camel:camel-cxf-rest, Maven3.20.2OSV
  • org.apache.camel:camel-cxf-rest, Maven3.20.3OSV
  • org.apache.camel:camel-cxf-rest, Maven3.20.4OSV
  • org.apache.camel:camel-cxf-rest, Maven3.20.5OSV
  • org.apache.camel:camel-cxf-rest, Maven3.20.6OSV
  • org.apache.camel:camel-cxf-rest, Maven3.20.7OSV
  • org.apache.camel:camel-cxf-rest, Maven3.20.8OSV
  • org.apache.camel:camel-cxf-rest, Maven3.20.9OSV
  • org.apache.camel:camel-cxf-rest, Maven3.21.0OSV
  • org.apache.camel:camel-cxf-rest, Maven3.21.1OSV
  • org.apache.camel:camel-cxf-rest, Maven3.21.2OSV
  • org.apache.camel:camel-cxf-rest, Maven3.21.3OSV
  • org.apache.camel:camel-cxf-rest, Maven3.21.4OSV
  • org.apache.camel:camel-cxf-rest, Maven3.21.5OSV
  • org.apache.camel:camel-cxf-rest, Maven3.22.0OSV
  • org.apache.camel:camel-cxf-rest, Maven3.22.1OSV
  • org.apache.camel:camel-cxf-rest, Maven3.22.2OSV
  • org.apache.camel:camel-cxf-rest, Maven3.22.3OSV
  • org.apache.camel:camel-cxf-rest, Maven3.22.4OSV
  • org.apache.camel:camel-cxf-rest, Maven4.0.0OSV
  • org.apache.camel:camel-cxf-rest, Maven4.0.0-M1OSV
  • org.apache.camel:camel-cxf-rest, Maven4.0.0-M2OSV
  • org.apache.camel:camel-cxf-rest, Maven4.0.0-M3OSV
  • org.apache.camel:camel-cxf-rest, Maven4.0.0-RC1OSV
  • org.apache.camel:camel-cxf-rest, Maven4.0.0-RC2OSV
  • org.apache.camel:camel-cxf-rest, Maven4.0.1OSV
  • org.apache.camel:camel-cxf-rest, Maven4.0.2OSV
  • org.apache.camel:camel-cxf-rest, Maven4.0.3OSV
  • org.apache.camel:camel-cxf-rest, Maven4.0.4OSV
  • org.apache.camel:camel-cxf-rest, Maven4.0.5OSV
  • org.apache.camel:camel-cxf-rest, Maven4.0.6OSV
  • org.apache.camel:camel-cxf-rest, Maven4.1.0OSV
  • org.apache.camel:camel-cxf-rest, Maven4.10.0OSV
  • org.apache.camel:camel-cxf-rest, Maven4.10.1OSV
  • org.apache.camel:camel-cxf-rest, Maven4.10.2OSV
  • org.apache.camel:camel-cxf-rest, Maven4.10.3OSV
  • org.apache.camel:camel-cxf-rest, Maven4.10.4OSV
  • org.apache.camel:camel-cxf-rest, Maven4.10.5OSV
  • org.apache.camel:camel-cxf-rest, Mavenfrom 4.15.0, fixed in 4.18.2OSV
  • org.apache.camel:camel-cxf-rest, Maven4.15.0OSV
  • org.apache.camel:camel-cxf-rest, Maven4.16.0OSV
  • org.apache.camel:camel-cxf-rest, Maven4.17.0OSV
  • org.apache.camel:camel-cxf-rest, Maven4.18.0OSV
  • org.apache.camel:camel-cxf-rest, Maven4.18.1OSV

References 6