Apache Camel: Five Vulnerabilities Disclosed, Including Critical RCE in Vertx HTTP
Apache Camel faces a batch of five vulnerabilities disclosed on July 6, 2026, including a critical RCE flaw in camel-vertx-http and information disclosure issues.
Key findings
- Five Apache Camel vulnerabilities disclosed on July 6, 2026, affecting multiple components.
- CVE-2026-40859 allows Remote Code Execution via deserialization in camel-vertx-http.
- CVE-2026-46584 in camel-mail exposes credentials and sensitive info via improper input validation.
- CVE-2026-56139 and CVE-2026-49365 lead to information disclosure via error messages.
- CVE-2026-56140 is a low-severity hardening issue in camel-aws2-sns.
On July 6, 2026, a batch of five vulnerabilities was disclosed for Apache Camel, a widely-used open-source integration framework. The vulnerabilities, disclosed on the same day, span various components and impact levels, with the most severe allowing for Remote Code Execution. These disclosures highlight potential risks for organizations relying on Camel for their integration needs.
The vulnerabilities affect several Apache Camel components:
- org.apache.camel/camel-aws2-sns: CVE-2026-56140, a low-severity vulnerability, stems from improper input validation, requiring defense-in-depth hardening.
- org.apache.camel/camel-undertow and org.apache.camel/camel-netty-http: CVE-2026-56139 (moderate) and CVE-2026-49365 (important) respectively, both involve information disclosure through error messages that may contain sensitive data.
- org.apache.camel/camel-mail: CVE-2026-46584, a moderate severity vulnerability, exposes credentials and sensitive information due to improper input validation of mail headers.
- org.apache.camel/camel-vertx-http: The most critical vulnerability, CVE-2026-40859, is an important severity (CVSSv3 8.1) flaw that allows for Remote Code Execution via deserialization of untrusted data.
The most significant finding is CVE-2026-40859, which presents a serious risk of remote code execution due to insecure deserialization practices. This type of vulnerability can allow attackers to take complete control of affected systems. Additionally, the information disclosure vulnerabilities (CVE-2026-56139 and CVE-2026-49365) and the credential exposure in CVE-2026-46584 could be leveraged by attackers to gather intelligence or gain unauthorized access.
Details regarding specific affected versions and patch availability were not immediately available in the disclosure information. Users are advised to consult the official Apache Camel security advisories for the most up-to-date information on remediation and affected versions.
This batch of vulnerabilities underscores the importance of regularly updating Apache Camel to the latest secure versions and carefully reviewing configurations, especially for components handling external data or sensitive information. The presence of a critical RCE vulnerability warrants immediate attention from all users of the affected components.
The Apache Camel team has addressed these issues. Users should update to the latest versions to mitigate these risks.
The vulnerabilities disclosed include:
- CVE-2026-56140: Defense-in-depth hardening for AWS SNS Component.
- CVE-2026-56139: Information disclosure in Undertow Component via error messages.
- CVE-2026-49365: Information disclosure in Netty HTTP Component via error messages.
- CVE-2026-46584: Credential exposure and information disclosure in Mail Component.
- CVE-2026-40859: Remote Code Execution via Deserialization in Vertx HTTP Component.
This coordinated disclosure event highlights the diverse security posture of Apache Camel's components. The critical Remote Code Execution vulnerability in the Vertx HTTP component is of particular concern, alongside information disclosure and credential exposure risks in other components. Users should prioritize patching and review their configurations.