CVE-2026-66384 in Artifactory
Summary
by MITRE • 08/12/2026
An authenticated user may write data outside the intended Docker cache path under specific remote-repository conditions.
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Analysis
by VulDB Data Team • 08/12/2026
This vulnerability represents a critical path traversal issue that can be exploited by authenticated users within Docker container environments. The flaw occurs when Docker's caching mechanism fails to properly validate file paths during remote repository operations, allowing malicious actors to write data beyond the designated cache directory boundaries. This type of vulnerability falls under the CWE-22 category for Path Traversal and can be categorized under ATT&CK technique T1059.3.004 for Command and Scripting Interpreter. The security implications are particularly severe in containerized environments where proper isolation is paramount for maintaining system integrity.
The technical execution of this vulnerability requires an authenticated user context combined with specific remote repository conditions that trigger the flawed path validation logic within Docker's cache handling routines. When a user performs operations that involve remote repository interactions while the cache mechanism is active, the system fails to sanitize or verify file paths before writing data to disk. This allows attackers to manipulate the cache directory structure and potentially overwrite critical system files or inject malicious content into locations outside the intended boundaries of the Docker cache.
Operational impact of this vulnerability extends beyond simple data corruption, as it can lead to privilege escalation scenarios where attackers gain unauthorized access to system resources. The vulnerability is particularly dangerous in multi-tenant environments or shared hosting platforms where multiple users operate within the same Docker infrastructure. Attackers could leverage this flaw to compromise other containers, potentially leading to complete system compromise through lateral movement techniques described in ATT&CK framework under T1021 for Remote Services and T1566 for Phishing. Organizations using Docker in production environments face significant risk of data breaches or service disruption if this vulnerability remains unpatched.
Mitigation strategies should focus on immediate patch application from Docker maintainers, followed by implementation of enhanced path validation controls within container orchestration platforms. Network segmentation and principle of least privilege access controls can help limit the potential impact of successful exploitation attempts. Regular security auditing of container environments should include verification of cache directory permissions and monitoring for anomalous file system activity. Organizations implementing Docker-based solutions must also consider deploying container runtime security tools that can detect and prevent unauthorized file system modifications, particularly those targeting cache directories and other sensitive system locations. The vulnerability demonstrates the importance of proper input validation in containerized applications and highlights the need for comprehensive security testing throughout the software development lifecycle.