CVE-2026-49042
Summary
by MITRE • 07/06/2026
Improper Input Validation vulnerability in Apache Camel.
This issue affects Apache Camel: from 4.8.0 through 4.18.2, from 4.19.0 through 4.20.0.
Users are recommended to upgrade to version 4.18.3, 4.21.0, which fixes the issue.
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Analysis
by VulDB Data Team • 07/06/2026
The improper input validation vulnerability in Apache Camel represents a critical security weakness that has affected multiple versions within the 4.x release line. This flaw stems from insufficient validation of user-supplied data within the messaging and integration framework, creating potential attack vectors for malicious actors who can manipulate input parameters to exploit the system. The vulnerability specifically impacts versions ranging from 4.8.0 through 4.18.2 and additionally affects versions 4.19.0 through 4.20.0, indicating a prolonged period of exposure that could have allowed attackers to develop and deploy exploits against affected systems. The issue manifests when the framework processes incoming data without adequate sanitization or validation checks, potentially allowing arbitrary code execution or denial of service conditions depending on the specific implementation and attack scenario.
The technical nature of this vulnerability falls under CWE-20, which defines improper input validation as a fundamental weakness in software design where applications fail to properly validate or sanitize user inputs before processing them. This weakness creates opportunities for attackers to inject malicious data that can bypass normal security controls within Apache Camel's integration capabilities. The vulnerability typically occurs when the framework accepts and processes external inputs through various protocols and endpoints without sufficient validation mechanisms, particularly affecting components that handle message routing, transformation, and protocol handling within the Camel ecosystem. Attackers could potentially leverage this weakness to manipulate the flow of messages, inject harmful payloads, or disrupt normal operations through carefully crafted input data that exploits the lack of proper validation checks.
The operational impact of this vulnerability extends beyond simple exploitation scenarios to encompass broader security implications for organizations relying on Apache Camel for enterprise integration. Systems utilizing affected versions could face unauthorized access to sensitive data flows, potential disruption of critical business processes, and possible escalation to full system compromise depending on the deployment architecture. The vulnerability's presence in multiple minor releases suggests that many organizations may have been running vulnerable code for extended periods without awareness, creating a significant risk surface for attackers who can target this specific weakness. Organizations using Camel for processing sensitive information or as part of critical infrastructure components would face heightened exposure since the vulnerability could enable unauthorized data manipulation or access to integration points that serve as bridges between different systems and databases.
Security mitigation strategies for this vulnerability center around immediate version upgrades to the patched releases, specifically 4.18.3 or 4.21.0, which contain the necessary fixes to address the input validation gaps. Organizations should conduct comprehensive assessments of their Camel deployments to identify all affected versions and ensure proper patching across all environments including development, testing, and production systems. Additional defensive measures include implementing network segmentation to limit access to Camel endpoints, deploying robust input filtering mechanisms at network boundaries, and establishing monitoring procedures to detect anomalous patterns in message processing that could indicate exploitation attempts. The ATT&CK framework categorizes this vulnerability under techniques related to input validation and privilege escalation, suggesting that defenders should focus on strengthening perimeter controls and implementing comprehensive logging of integration activities to detect potential exploitation attempts. Organizations should also consider implementing automated patch management processes to ensure timely deployment of security updates across their integration infrastructure and establish procedures for validating patches before deployment to maintain system stability while addressing the identified weakness.