CVE-2026-56140: CWE-20 Improper Input Validation in Apache Software Foundation Apache Camel AWS2 SNS
An improper input validation issue was identified in the Apache Camel AWS2 SNS component related to header filtering. The component lacked an inbound filter rule for Camel headers, but since it is producer-only and does not support consumers, no inbound message attributes are mapped, preventing exploitation. The issue was addressed by adding an inbound filter rule to align with sibling components, providing defense-in-depth hardening with no known exploit path. Users can upgrade to fixed versions for aligned behavior, though no urgent action is required.
AI Analysis
Technical Summary
The Apache Camel AWS2 SNS component originally configured only an outbound header filter and lacked an inbound filter rule, similar to a related issue in the camel-aws2-sqs component that was exploitable. However, since the SNS component is producer-only and does not support consumers, no inbound message attributes are mapped into Camel Exchanges, making the missing inbound filter unreachable by attackers. The fix (CAMEL-23506) added an inbound filter rule to the Sns2HeaderFilterStrategy to align with sibling components, enhancing defense-in-depth without addressing an active exploit path. Affected versions include 4.0.0 before 4.14.8, 4.15.0 before 4.18.3, and 4.19.0 before 4.21.0.
Potential Impact
There is no known exploit path for this vulnerability in the Apache Camel AWS2 SNS component because it is producer-only and does not process inbound messages. The issue represents a potential input validation gap that was addressed as a defense-in-depth improvement. No active exploitation or impact has been reported.
Mitigation Recommendations
The vendor has released fixed versions (4.14.8, 4.18.3, and 4.21.0) that include the inbound filter rule addition for defense-in-depth alignment. Since there is no known exploit path, no urgent action or workaround is required. Users desiring the aligned behavior should upgrade to one of the fixed versions. Operators should continue to apply least-privilege IAM permissions on SNS topics as a best practice.
CVE-2026-56140: CWE-20 Improper Input Validation in Apache Software Foundation Apache Camel AWS2 SNS
Description
An improper input validation issue was identified in the Apache Camel AWS2 SNS component related to header filtering. The component lacked an inbound filter rule for Camel headers, but since it is producer-only and does not support consumers, no inbound message attributes are mapped, preventing exploitation. The issue was addressed by adding an inbound filter rule to align with sibling components, providing defense-in-depth hardening with no known exploit path. Users can upgrade to fixed versions for aligned behavior, though no urgent action is required.
Affected software
pkg:maven/Apache Software Foundation/org.apache.camel:camel-aws2-snsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Apache Camel AWS2 SNS component originally configured only an outbound header filter and lacked an inbound filter rule, similar to a related issue in the camel-aws2-sqs component that was exploitable. However, since the SNS component is producer-only and does not support consumers, no inbound message attributes are mapped into Camel Exchanges, making the missing inbound filter unreachable by attackers. The fix (CAMEL-23506) added an inbound filter rule to the Sns2HeaderFilterStrategy to align with sibling components, enhancing defense-in-depth without addressing an active exploit path. Affected versions include 4.0.0 before 4.14.8, 4.15.0 before 4.18.3, and 4.19.0 before 4.21.0.
Potential Impact
There is no known exploit path for this vulnerability in the Apache Camel AWS2 SNS component because it is producer-only and does not process inbound messages. The issue represents a potential input validation gap that was addressed as a defense-in-depth improvement. No active exploitation or impact has been reported.
Mitigation Recommendations
The vendor has released fixed versions (4.14.8, 4.18.3, and 4.21.0) that include the inbound filter rule addition for defense-in-depth alignment. Since there is no known exploit path, no urgent action or workaround is required. Users desiring the aligned behavior should upgrade to one of the fixed versions. Operators should continue to apply least-privilege IAM permissions on SNS topics as a best practice.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-06-19T09:56:29.381Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Is Cloud Service
- true
Threat ID: 6a4b6cb027e9c797192526ac
Added to database: 07/06/2026, 08:52:00 UTC
Last enriched: 07/06/2026, 09:06:33 UTC
Last updated: 07/06/2026, 10:45:57 UTC
Views: 8
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