Authenticated route hijacking via unfiltered SQS attributes
Published Jul 6, 2026 · Updated Jul 6, 2026
Improper input validation in Apache Camel allows remote authenticated users to inject Camel control headers through crafted SQS messages. Sqs2Consumer passes every SQS MessageAttribute through Sqs2HeaderFilterStrategy, whose absent inbound rule copies internal control names into the Exchange. Any principal with sqs:SendMessage on a consumed queue can steer downstream producers in releases 4.0.0 through 4.14.7, 4.15.0 through 4.18.2, and 4.19.0 through 4.20.0; the resulting request redirection, file targeting, or query override depends on the route.
Summary
What happened
Improper input validation in Apache Camel allows remote authenticated users to inject Camel control headers through crafted SQS messages. Sqs2Consumer passes every SQS MessageAttribute through Sqs2HeaderFilterStrategy, whose absent inbound rule copies internal control names into the Exchange. Any principal with sqs:SendMessage on a consumed queue can steer downstream producers in releases 4.0.0 through 4.14.7, 4.15.0 through 4.18.2, and 4.19.0 through 4.20.0; the resulting request redirection, file targeting, or query override depends on the route.
The record
- CVE
- CVE-2026-46456
- Published
- Jul 6, 2026
- Updated
- Jul 6, 2026
- Vendor
- The Apache Software Foundation
- Product
- Apache Camel
- Classifications
- CWE-20, T1565.002
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 6, 2026CVE publishedPublication date reported by the CVE source.
- 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.
- Affected versionversion=4.0.0 <4.14.8
- Affected versionversion=4.15.0 <4.18.3
- Affected versionversion=4.19.0 <4.21.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Public exploit references
- CVE-2026-46456 runnable Spring Boot and Quarkus reproducersfunctional · demonstrated
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Technologies
Your stack
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Your stack
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