CVE-2026-50338 in Azure Spring Apps
Summary
by MITRE • 07/14/2026
Improper authentication in Azure Spring Apps allows an authorized attacker to elevate privileges over a network.
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Analysis
by VulDB Data Team • 07/14/2026
This vulnerability represents a critical weakness in the authentication mechanisms of Azure Spring Apps, a cloud-based platform for deploying and managing spring boot applications within the azure ecosystem. The flaw enables authenticated attackers to escalate their privileges and gain unauthorized access to network resources that should be restricted to higher-privileged users or system components. This issue directly impacts the principle of least privilege and can potentially lead to complete compromise of the affected environment.
The technical root cause stems from inadequate validation of authentication tokens or session management within the azure spring apps service. Attackers who have already established initial access through legitimate means can exploit this weakness to elevate their privileges without requiring additional credentials or authorization. This typically occurs when the platform fails to properly verify the authenticity and authorization level of incoming requests, allowing malicious actors to manipulate authentication contexts and gain elevated access rights. The vulnerability may be related to improper implementation of role-based access control mechanisms or flawed token validation processes that do not adequately enforce access restrictions.
The operational impact of this vulnerability extends beyond simple privilege escalation, potentially enabling attackers to execute arbitrary code, access sensitive data, modify application configurations, or even take control of the entire azure spring apps environment. Network-level access elevation can lead to lateral movement within the azure infrastructure, allowing attackers to explore connected services and potentially compromise additional resources. Organizations using azure spring apps may face significant security risks including data breaches, service disruption, and compliance violations that could result in substantial financial and reputational damage.
Effective mitigation strategies should focus on implementing robust authentication controls, regularly updating azure spring apps components, and monitoring for suspicious privilege escalation activities. Organizations must ensure proper access control implementations, validate all authentication tokens thoroughly, and maintain updated security configurations. Security teams should implement network segmentation to limit the impact of potential privilege escalation and establish comprehensive monitoring protocols to detect anomalous behavior patterns. This vulnerability aligns with cwes such as 287 improper authorization and 306 missing authentication for critical functions, while potentially mapping to attack techniques in the mitre att&ck framework under privilege escalation and credential access categories. Regular security assessments and penetration testing should be conducted to identify similar weaknesses in azure spring apps deployments and ensure proper implementation of secure authentication mechanisms throughout the platform.