CVE-2026-66018 in Artifactory
Summary
by MITRE • 07/27/2026
Build readers can access another repository's environment properties. A caller with read access to an ordinary repository can select a readable repository parameter while retrieving environment properties for a protected build, exposing build environment secrets (confidentiality impact; no integrity or availability impact demonstrated).
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Analysis
by VulDB Data Team • 07/27/2026
This vulnerability represents a critical confidentiality breach in build systems where unauthorized access to environment properties occurs through improper access control mechanisms. The flaw allows attackers with read permissions on standard repositories to exploit repository parameter selection during environment property retrieval for protected builds, thereby exposing sensitive build environment secrets. This represents a classic privilege escalation scenario where minimal read access is leveraged to gain access to confidential information that should remain restricted to authorized personnel only.
The technical implementation of this vulnerability stems from inadequate validation of repository access controls during environment property enumeration processes. When a caller retrieves environment properties for a build, the system fails to properly verify whether the requesting entity has appropriate authorization levels to access the specific repository parameters being referenced. This weakness creates an information disclosure pathway where sensitive configuration values, API keys, passwords, and other confidential data can be extracted through carefully crafted parameter selection. The vulnerability operates at the intersection of repository management and build automation systems, where environment variables are often used to store credentials and operational secrets.
From an operational impact perspective, this vulnerability can lead to significant security consequences including exposure of production credentials, database connection strings, API tokens, and other sensitive operational parameters. Attackers can use the extracted information to compromise downstream systems, gain unauthorized access to production environments, or conduct further attacks within the organization's infrastructure. The confidentiality impact is particularly severe because these secrets are often used across multiple systems and services, potentially enabling lateral movement and persistent access. The vulnerability affects both continuous integration and deployment pipelines, where build environments frequently contain credentials for accessing various operational systems.
Security professionals should implement strict access control validation mechanisms that ensure repository parameter selection during environment property retrieval respects the caller's authorization levels. The recommended mitigations include enforcing mandatory access controls that validate repository permissions before allowing parameter expansion, implementing role-based access controls for build environments, and establishing clear separation between public and protected repository parameters. Organizations should also consider implementing automated monitoring for unauthorized access patterns to environment properties and establish regular security auditing of build systems. This vulnerability aligns with CWE-284 Access Control Issues and maps to ATT&CK technique T1552 Credential Access through information gathering activities, emphasizing the need for proper privilege separation in automated build environments.
The remediation approach should focus on strengthening the access control layer that governs environment property retrieval operations, ensuring that repository parameter selection is validated against the caller's actual authorization levels. This includes implementing comprehensive access control lists, establishing audit trails for sensitive data access, and configuring automatic alerting when unauthorized parameter access patterns are detected. Additionally, organizations should adopt a principle of least privilege approach where build environments only receive the minimum required parameters for their operation, reducing the potential impact of such vulnerabilities. The implementation of these controls helps prevent similar issues from occurring in other automated systems and strengthens overall security posture against credential exposure attacks.
This vulnerability type highlights the importance of secure configuration management in modern development environments where automated systems frequently access sensitive operational data. The flaw demonstrates how seemingly minor access control oversights can create significant security risks, particularly in complex build and deployment pipelines where multiple repositories and environment parameters interact. Proper implementation of access controls, combined with regular security assessments and monitoring, is essential for maintaining the confidentiality of sensitive operational information in automated development environments. Organizations must recognize that exposure of build environment secrets can have cascading effects on overall infrastructure security, making this vulnerability particularly concerning from a risk management perspective.