CVE-2026-46588
Summary
by MITRE • 07/06/2026
Improper Input Validation vulnerability in Apache Camel.
This issue affects Apache Camel: through 4.14.7, from 4.15.0 through 4.18.2, from 4.19.0 through 4.20.0.
Users are recommended to upgrade to version 4.14.8, 4.18.3, 4.21.0, which fixes the issue.
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Analysis
by VulDB Data Team • 07/06/2026
The Apache Camel framework serves as a powerful integration middleware platform that facilitates the routing and transformation of data between different systems through various protocols and message formats. This particular vulnerability represents a critical weakness in the input validation mechanisms that govern how the framework processes external data inputs. The flaw manifests across multiple version ranges including 4.14.7 and earlier, 4.15.0 through 4.18.2, and 4.19.0 through 4.20.0, indicating a widespread exposure that affects substantial portions of the Camel ecosystem. The vulnerability stems from insufficient validation of user-provided inputs during message processing, potentially allowing malicious actors to exploit this weakness through crafted data payloads that could manipulate the framework's behavior.
The technical implementation of this improper input validation flaw creates opportunities for attackers to inject malformed or unexpected data into the Camel routing engine. When the framework processes these unvalidated inputs, it may execute unintended operations or bypass security controls that should normally protect against malicious activity. This type of vulnerability typically maps to CWE-20, which defines weaknesses in input validation as a fundamental class of software vulnerabilities. The operational impact extends beyond simple data corruption since Apache Camel often operates within enterprise environments where it handles sensitive business data and facilitates critical communication between systems. Attackers could leverage this weakness to perform unauthorized data access, manipulate message flows, or potentially escalate privileges within the integration environment.
The specific nature of this vulnerability suggests that it may enable attackers to manipulate routing logic or bypass authentication mechanisms that are supposed to validate input before processing. This issue particularly affects Camel's ability to handle external inputs through various components such as HTTP endpoints, message queues, or file processing modules where user data enters the system. The three recommended fixed versions provide different release paths for organizations to remediate this vulnerability, indicating that the fix addresses multiple potential attack vectors within the framework. Organizations running affected versions must carefully evaluate their integration flows and identify any points where external inputs could enter the Camel environment through HTTP APIs, message brokers, or file ingestion processes.
Security practitioners should consider this vulnerability in the context of the ATT&CK framework's initial access and execution phases where adversaries often exploit input validation flaws to establish footholds within target environments. The remediation strategy requires comprehensive testing of all Camel integration points that process external data to ensure that the patched versions properly validate inputs according to established security standards. Organizations should also implement additional monitoring around message processing activities and consider network segmentation to limit potential impact if exploitation occurs. The vulnerability highlights the importance of robust input validation practices in middleware frameworks where data flows between multiple systems and security boundaries, emphasizing that even well-established integration platforms require continuous security attention to prevent exploitation of fundamental validation weaknesses that could compromise entire enterprise communication infrastructures.