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CVE-2026-46454 critical CVSS 9.8

Vulnerability in org.apache.camel:camel-cometd (CVE-2026-46454)

Summary

Vulnerability in org.apache.camel:camel-cometd (CVE-2026-46454). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 4.21.0 or later.

Original description

The description as published by the source.

Improper Input Validation vulnerability in Apache Camel Cometd Component.

The camel-cometd component maps inbound Bayeux (CometD) message headers into the Camel Exchange without applying a HeaderFilterStrategy. CometdBinding.populateExchangeFromMessage copies the entire ext.CamelHeaders map supplied by the CometD client directly onto the Camel message (message.setHeaders), so any header name - including Camel-internal control headers such as CamelHttpUri, CamelFileName or CamelJmsDestinationName - is accepted unmodified. Because a CometdComponent installs no Bayeux SecurityPolicy by default, any client that can complete the Bayeux handshake against the CometD endpoint can publish such a message without authentication. An attacker can therefore inject arbitrary Camel control headers that influence the behaviour of downstream producers in the route (for example redirecting an HTTP producer, changing a file name, or overriding a JMS destination); the injected headers also persist across internal direct, seda and vm hops. The concrete downstream impact depends on which producers the route uses.
This issue affects Apache Camel: from 4.0.0 before 4.14.8, from 4.15.0 before 4.18.3, from 4.19.0 before 4.21.0.

Users are recommended to upgrade to version 4.21.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.8. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.3. The fix implements…

Source: GitHub Security Advisories (Global) 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-2026-46454 has been found in org.apache.camel:camel-cometd.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: upgrade org.apache.camel:camel-cometd to 4.21.0 or later.
If unsure, ask your IT team or search "org.apache.camel:camel-cometd CVE-2026-46454" on the vendor's site.

CVE-2026-46454 (org.apache.camel:camel-cometd) — CWE-20 / CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 4.21.0 — 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.

❓ What is the problem

A vulnerability (CWE-20) exists in org.apache.camel:camel-cometd.

📍 Affected scope

Check the vendor advisory for the affected versions of org.apache.camel:camel-cometd.

🔥 Severity

Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to 4.21.0.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

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

  1. 1
    Identify 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-cometd を使っているサービスとバージョンを洗い出す。

  2. 2
    Apply patch patch 
    Upgrade org.apache.camel:camel-cometd to 4.21.0

    ステージング環境で 4.21.0 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。

  3. 3
    Post-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

maven org.apache.camel:camel-cometd
[{"type":"ECOSYSTEM","events":[{"introduced":"4.19.0"},{"fixed":"4.21.0"}]}]

References

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