CVE-2025-67895

Comprehensive Technical Analysis of CVE-2025-67895

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-67895 CVSS Score: 9.8

The vulnerability in question is a Remote Code Execution (RCE) issue affecting the Edge3 Worker RPC in Apache Airflow 2. The severity of this vulnerability is rated as critical, with a CVSS score of 9.8. This high score is due to the potential for complete system compromise, which can lead to significant data breaches, unauthorized access, and system downtime.

2. Potential Attack Vectors and Exploitation Methods

The vulnerability allows a DAG (Directed Acyclic Graph) author to perform RCE in the webserver context. This can be exploited in several ways:

• Unauthorized Access: An attacker with DAG authoring privileges can execute arbitrary code on the Airflow webserver.
• Data Exfiltration: The attacker can exfiltrate sensitive data by executing commands that extract and transmit data.
• System Compromise: The attacker can install malware, create backdoors, or perform other malicious activities that compromise the integrity and availability of the system.

3. Affected Systems and Software Versions

The vulnerability affects:

• Apache Airflow Providers Edge3: Versions before 2.0.0, specifically when installed and configured on Airflow 2.
• Airflow 2: Any installation where the Edge3 provider is installed and configured.

Systems running Airflow 3 with the Edge3 provider are not affected.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following actions are recommended:

• Uninstall Edge3 Provider: If you are using Airflow 2, uninstall the Edge3 provider immediately.
• Upgrade to Airflow 3: Migrate to Airflow 3, which supports Edge3 provider versions 2.0.0 and above, where the RCE-prone code has been removed.
• Monitor and Audit: Conduct thorough audits and monitoring of DAG authoring activities to detect any suspicious behavior.
• Access Control: Implement strict access controls to limit who can author DAGs and ensure that only trusted users have these privileges.

5. Impact on Cybersecurity Landscape

The discovery of this vulnerability highlights the importance of secure development practices and the risks associated with using development-only features in production environments. It underscores the need for:

• Regular Security Audits: Continuous security assessments to identify and mitigate vulnerabilities.
• Patch Management: Timely application of patches and updates to mitigate known vulnerabilities.
• Secure Coding Practices: Ensuring that development-only features are not enabled in production environments.

6. Technical Details for Security Professionals

Vulnerability Details:

• The Edge3 provider in Airflow 2 implicitly enables a non-public API used for testing during development.
• This API allows DAG authors to perform RCE in the webserver context, which is a critical security risk.

Detection and Response:

• Log Analysis: Review logs for any unusual activities related to DAG authoring and execution.
• Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on suspicious activities that may indicate an RCE attempt.
• Incident Response Plan: Have a robust incident response plan in place to quickly address any detected exploitation attempts.

References:

• GitHub Pull Request
• Apache Mailing List
• OpenWall Security List

By following these recommendations and understanding the technical details, cybersecurity professionals can effectively mitigate the risks associated with CVE-2025-67895 and enhance the overall security posture of their systems.