CVE-2026-71384 in ColdFusion
Summary
by MITRE • 08/11/2026
is affected by an Incorrect Authorization vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized read and write access, potentially resulting in an application denial-of-service condition. The vulnerable component is restricted to an administrative network zone by default. Exploitation of this issue does not require user interaction. Scope is changed.
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Analysis
by VulDB Data Team • 08/12/2026
This vulnerability represents a critical incorrect authorization flaw that undermines fundamental security controls within the affected system. The issue stems from improper access control mechanisms that fail to properly validate user privileges before granting access to sensitive resources. According to CWE-285, this classification indicates an insufficient authorization problem where the system does not adequately verify that authenticated users have the necessary permissions to perform specific operations. The vulnerability exists in a security feature that is designed to protect against unauthorized access but can be circumvented through exploitation of the authorization logic flaw.
The technical implementation of this vulnerability allows attackers to bypass established security measures without requiring any form of user interaction, making it particularly dangerous as it can be exploited automatically. This characteristic aligns with ATT&CK technique T1078 which describes valid accounts usage for persistence and privilege escalation. The security feature bypass enables unauthorized read and write access operations that could potentially lead to application denial-of-service conditions, where legitimate users might be unable to access system resources due to the compromised state. The affected component is restricted to an administrative network zone by default, suggesting that while the vulnerability may be contained within a privileged network segment, it still represents a significant risk as attackers who can access this zone could leverage it for broader compromise.
From an operational perspective, the impact of this vulnerability extends beyond simple unauthorized access as it creates potential for data corruption, information disclosure, and service disruption. The fact that exploitation does not require user interaction means that automated attack tools could be deployed to exploit this weakness, amplifying the potential damage. The scope change aspect indicates that the vulnerability may affect resources beyond its initial intended boundaries, potentially allowing attackers to access components they should not normally be able to reach. This characteristic makes the vulnerability particularly concerning for enterprise environments where administrative zones often contain critical infrastructure and sensitive data.
The recommended mitigations include implementing proper input validation and access control checks at all entry points, ensuring that authorization decisions are made based on comprehensive privilege verification rather than simple authentication status. Security controls should be designed with defense-in-depth principles where multiple layers of protection exist to prevent bypass attempts. Regular security assessments and penetration testing should be conducted to identify similar authorization flaws before they can be exploited by malicious actors. Network segmentation should remain intact but enhanced with additional monitoring and logging capabilities to detect unauthorized access attempts. The vulnerability demonstrates the critical importance of proper privilege management and access control design, aligning with industry standards such as NIST SP 800-53 security controls that emphasize the need for proper access control mechanisms and authorization validation procedures.