CVE-2026-66381 in Artifactory
Summary
by MITRE • 08/12/2026
A repository reader with cache-deploy permission may access content outside a configured upstream path under specific conditions.
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Analysis
by VulDB Data Team • 08/12/2026
This vulnerability represents a privilege escalation issue within repository management systems where users with cache-deploy permissions can potentially access content beyond their designated upstream path boundaries. The flaw occurs when the system fails to properly validate or enforce path restrictions during cache operations, allowing authenticated users to traverse file system paths outside their intended scope. Such vulnerabilities typically arise from inadequate input validation and insufficient access control mechanisms within repository management software.
The technical implementation of this vulnerability stems from improper path sanitization routines that fail to adequately filter or restrict user-supplied paths during cache deployment operations. When a user with cache-deploy permissions attempts to access repository content, the system should enforce strict boundaries based on configured upstream paths but instead allows path traversal behaviors. This weakness can manifest through various mechanisms including directory traversal attacks, symbolic link exploitation, or improper path resolution logic that does not adequately validate against predefined security boundaries.
The operational impact of this vulnerability extends beyond simple information disclosure to potentially enable broader system compromise. An attacker could leverage this flaw to access sensitive configuration files, source code repositories, or other unauthorized content stored outside their designated access scope. The vulnerability particularly affects continuous integration and deployment environments where cache operations are frequently performed and where proper access controls must be maintained to prevent unauthorized data exposure. This issue aligns with CWE-22 Path Traversal vulnerabilities and can be mapped to ATT&CK technique T1078 Valid Accounts for privilege escalation.
Mitigation strategies should focus on implementing robust path validation mechanisms that enforce strict boundary checks during cache operations, ensuring that all user-supplied paths are properly sanitized and validated against configured upstream paths. Organizations should implement least-privilege access controls, regularly audit repository permissions, and deploy automated monitoring solutions to detect anomalous access patterns. Additionally, system administrators should configure proper input validation at multiple layers including application-level sanitization, network-level filtering, and file system permission controls to prevent unauthorized path traversal attempts. Regular security assessments and penetration testing should be conducted to identify and remediate similar access control weaknesses across the entire software supply chain infrastructure.