Vulnerability in org.apache.camel:camel-cxf-rest (CVE-2026-47323)
Summary
Vulnerability in org.apache.camel:camel-cxf-rest (CVE-2026-47323). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 4.18.2 or later.
Original description
The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-47323 has been found in org.apache.camel:camel-cxf-rest.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: upgrade org.apache.camel:camel-cxf-rest to 4.18.2 or later.
If unsure, ask your IT team or search "org.apache.camel:camel-cxf-rest CVE-2026-47323" on the vendor's site.
CVE-2026-47323 (org.apache.camel:camel-cxf-rest) — CWE-178 / CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 4.18.2 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-178) exists in org.apache.camel:camel-cxf-rest.
Check the vendor advisory for the affected versions of org.apache.camel:camel-cxf-rest.
Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover.
Update to 4.18.2.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで org.apache.camel:camel-cxf-rest を使っているサービスとバージョンを洗い出す。
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2Apply patch patch
Upgrade org.apache.camel:camel-cxf-rest to 4.18.2ステージング環境で 4.18.2 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory nvd.nist.gov
- JVN JVNDB-2026-030748
- package github.com
- web camel.apache.org
- web github.com
- web access.redhat.com
- web bugzilla.redhat.com
- web security.access.redhat.com