CVE-2026-46454Public exploitNetwork attack vector

Unauthenticated route manipulation via control-header injection

Published Jul 6, 2026 · Updated Jul 6, 2026

Improper input validation in Apache Camel CometD allows remote attackers to inject Camel control headers through Bayeux messages. CometdBinding.populateExchangeFromMessage copies the client-controlled ext.CamelHeaders map onto each Exchange with message.setHeaders and no HeaderFilterStrategy. An unauthenticated client can publish by default, but concrete effects depend on downstream producers and range from route redirection to command execution.

CVSS severity9.8
Critical
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Apache Camel CometD allows remote attackers to inject Camel control headers through Bayeux messages. CometdBinding.populateExchangeFromMessage copies the client-controlled ext.CamelHeaders map onto each Exchange with message.setHeaders and no HeaderFilterStrategy. An unauthenticated client can publish by default, but concrete effects depend on downstream producers and range from route redirection to command execution.

The record

CVE
CVE-2026-46454
Published
Jul 6, 2026
Updated
Jul 6, 2026
Vendor
The Apache Software Foundation
Product
Apache Camel
Classifications
CWE-20, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.0.0 <4.14.8
  2. Affected versionversion=4.15.0 <4.18.3
  3. Affected versionversion=4.19.0 <4.21.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Camelversion=4.0.0 <4.14.8; version=4.15.0 <4.18.3; version=4.19.0 <4.21.0

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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