CVE-2026-47323
Apache Camel: Camel-CXF Message Header Injection via Missing Inbound Filtering
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.
INFO
Published Date :
May 19, 2026, 2:16 p.m.
Last Modified :
June 27, 2026, 5:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | ||||
| CVSS 3.1 | CRITICAL | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
Solution
- Upgrade to Apache Camel 4.19.0 or later.
- Upgrade to Camel 4.14.6 for 4.14.x LTS.
- Upgrade to Camel 4.18.2 for 4.18.x LTS.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-47323.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-47323 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-47323
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-47323 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-47323 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Jun. 27, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:/a:redhat:serverless:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Serverless', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:camel_quarkus:3'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel 4 for Quarkus 3', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:camel_spring_boot:4'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel for Spring Boot 4', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_fuse:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Fuse 7', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jbosseapxp'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform Expansion Pack', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_bpms_platform:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Process Automation 7', 'defaultStatus': 'unaffected'}] Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-791 Added Reference https://access.redhat.com/security/cve/CVE-2026-47323 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2479869 Added Reference https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-47323.json -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Apache Software Foundation', 'product': 'Apache Camel', 'versions': [{'status': 'affected', 'version': '3.18.0', 'lessThan': '4.14.6', 'versionType': 'semver'}, {'status': 'affected', 'version': '4.15.0', 'lessThan': '4.18.2', 'versionType': 'semver'}], 'packageName': 'org.apache.camel:camel-cxf-rest', 'collectionURL': 'https://repo.maven.apache.org/maven2', 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-47323', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-05-19T00:00:00+00:00'} -
Initial Analysis by [email protected]
Jun. 04, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:* versions from (including) 4.15.0 up to (excluding) 4.18.2 *cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:* versions from (including) 3.18.0 up to (excluding) 4.14.6 Added Reference Type Apache Software Foundation: https://camel.apache.org/security/CVE-2026-47323.html Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 20, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
New CVE Received by [email protected]
May. 19, 2026
Action Type Old Value New Value Added 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. Added CWE CWE-178 Added Reference https://camel.apache.org/security/CVE-2026-47323.html