CVE-2026-21760 in DevOps Loop
Summary
by MITRE • 07/17/2026
HCL DevOps Loop is affected by an Unauthorized Access to Admin Functionality (Forced Browsing) vulnerability. Improper authorization checks may allow unauthorized users to access restricted administrative functionality by directly accessing protected application endpoints.
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Analysis
by VulDB Data Team • 07/17/2026
The HCL DevOps Loop platform suffers from a critical authorization flaw classified as unauthorized access to administrative functionality through forced browsing techniques. This vulnerability stems from inadequate validation of user permissions when accessing protected application endpoints, allowing malicious actors to bypass normal authentication mechanisms and directly navigate to administrative functions that should only be accessible to authorized administrators.
This type of vulnerability falls under the CWE-285 category known as "Improper Authorization" and represents a fundamental breakdown in the application's access control model. The flaw enables what cybersecurity professionals term "privilege escalation" through direct object reference manipulation, where attackers can construct URLs or API endpoints that directly reference administrative functions without proper authentication. This weakness aligns with ATT&CK technique T1078 which describes legitimate credentials use for persistence and privilege escalation.
The technical implementation of this vulnerability occurs when the application fails to validate whether a user possesses sufficient privileges before granting access to sensitive administrative operations. Attackers can exploit this by simply modifying URL parameters or crafting direct requests to administrative endpoints, thereby circumventing the normal authorization checks that should occur during the authentication flow. The system does not properly enforce role-based access controls or session validation mechanisms that would normally prevent unauthorized users from accessing restricted functionality.
The operational impact of this vulnerability is severe and multifaceted, as it potentially allows attackers to gain complete administrative control over the DevOps platform. This includes but is not limited to creating or modifying user accounts, accessing sensitive configuration data, modifying pipeline definitions, and potentially compromising the entire CI/CD infrastructure. The consequences extend beyond immediate unauthorized access to include potential data breaches, service disruption, and supply chain compromise through malicious modifications to build processes and deployment workflows.
Organizations using HCL DevOps Loop should implement comprehensive mitigations including robust input validation for all endpoint requests, implementation of proper session management with token-based authentication, enforcement of principle of least privilege access controls, and regular security testing to identify similar authorization flaws. Additional protective measures include logging and monitoring all administrative access attempts, implementing multi-factor authentication for privileged accounts, and conducting regular penetration testing to verify the effectiveness of access control mechanisms against forced browsing attacks. The vulnerability demonstrates the critical importance of defense in depth strategies that protect against both external and internal threats through proper access control implementation.