CVE-2026-56161 in Azure Logic Apps
Summary
by MITRE • 08/07/2026
Improper access control in Azure Logic Apps allows an authorized attacker to disclose information over a network.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 08/07/2026
This vulnerability represents a critical weakness in Microsoft Azure Logic Apps service that stems from inadequate authorization mechanisms governing resource access. The flaw enables authenticated attackers to exploit improperly configured access controls to gain unauthorized disclosure of sensitive information through network communications. Such vulnerabilities typically arise when the underlying logic app workflows fail to implement proper authentication checks or when role-based access control policies are misconfigured, allowing lateral movement and data exfiltration. The technical nature of this issue aligns with common access control failures documented in the CWE database under category 285 which encompasses improper authorization scenarios. From an operational perspective, this vulnerability can be exploited by attackers who have already established some level of access to the Azure environment, potentially through compromised credentials or initial foothold obtained via other attack vectors.
The impact of this information disclosure vulnerability extends beyond simple data exposure as it can enable more sophisticated attacks within the cloud environment. Attackers may leverage this weakness to gather intelligence about workflow configurations, connection details, and potentially sensitive data processed by the logic apps. This reconnaissance capability can lead to further exploitation opportunities including privilege escalation or lateral movement attacks that align with techniques described in the MITRE ATT&CK framework under the initial access and credential access domains. The vulnerability is particularly concerning in multi-tenant cloud environments where a single compromised logic app could potentially expose data across multiple customers or provide attackers with insights into organizational workflows and integration patterns.
Security practitioners should implement comprehensive monitoring solutions to detect anomalous access patterns or unauthorized information disclosure attempts within Azure Logic Apps environments. Network traffic analysis should focus on identifying unusual data flows or connections that may indicate information leakage from logic app components. The recommended mitigations include enforcing strict role-based access controls, implementing principle of least privilege for workflow execution, and regularly auditing access policies through Azure's built-in security tools. Organizations should also consider implementing Azure Policy configurations to enforce secure defaults and ensure proper access control mechanisms are consistently applied across all logic app resources. Additionally, regular security assessments and penetration testing of cloud workflows can help identify configuration weaknesses that could be exploited to achieve unauthorized information disclosure as outlined in industry best practices for cloud security compliance.