CVE-2026-66377 in Artifactory
Summary
by MITRE • 08/12/2026
An unauthenticated user may access restricted repository information under specific conditions.
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Analysis
by VulDB Data Team • 08/12/2026
This vulnerability represents a critical access control flaw that allows unauthorized users to bypass authentication mechanisms and gain visibility into protected repository data. The issue typically manifests when applications fail to properly validate user credentials or session tokens before granting access to sensitive repositories. Such vulnerabilities often stem from inadequate input validation, weak session management, or flawed authorization logic within the application's security framework. The specific conditions under which this occurs may involve predictable URL patterns, missing access controls on API endpoints, or improper privilege checks during repository enumeration processes.
The technical implementation of this vulnerability commonly involves exploiting weaknesses in the authentication flow where the system does not adequately verify user identity before exposing repository contents. Attackers may leverage parameter manipulation, path traversal techniques, or direct API calls to bypass standard authentication barriers. This flaw can be particularly dangerous when combined with other vulnerabilities such as information disclosure issues or weak encryption practices that compound the exposure of sensitive data. The vulnerability aligns with CWE-285 which addresses improper authorization scenarios and may map to ATT&CK technique T1078 for valid accounts usage and T1566 for credential harvesting.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can enable attackers to map entire repository structures, identify sensitive files, and potentially gain access to source code, configuration details, or other proprietary data. Organizations may experience significant damage to their intellectual property assets, compliance violations, and reputational harm when such unauthorized access occurs. The vulnerability becomes particularly severe in environments where repositories contain customer data, cryptographic keys, system configurations, or other sensitive information that could be leveraged for further attacks.
Mitigation strategies must address the fundamental authentication and authorization gaps that enable this vulnerability. Organizations should implement robust access control mechanisms including proper session management, multi-factor authentication, and comprehensive privilege validation checks. Regular security testing including penetration testing and automated scanning should identify potential access control bypass opportunities. Additionally, implementing defense-in-depth strategies such as rate limiting, logging of access attempts, and monitoring for unusual repository access patterns can help detect and prevent exploitation attempts. The remediation process should include code reviews to ensure proper implementation of authentication flows, adherence to secure coding practices, and regular updates to security controls based on evolving threat landscapes.