CVE-2026-11937 in Security Verify Access
Summary
by MITRE • 08/12/2026
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 and IBM Verify Identity Access Container 11.0 through 11.0.3 and IBM Security Verify Access Container 10.0 through 10.0.9.2 Reverse Proxy in certain configurations is vulnerable to a denial of service attack.
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Analysis
by VulDB Data Team • 08/12/2026
This vulnerability affects IBM Security Verify Access and IBM Verify Identity Access products across multiple versions including 10.0 through 10.0.9.2 and 11.0 through 11.0.3, along with their respective containerized deployments. The issue manifests as a denial of service condition that can be triggered through specific reverse proxy configurations within these security platforms. The vulnerability represents a critical weakness in the system's ability to maintain availability during normal operational conditions.
The technical flaw stems from improper handling of certain HTTP request patterns or configuration parameters within the reverse proxy functionality of these identity access management solutions. When specific combinations of request headers, URL paths, or proxy settings are encountered, the system fails to properly process these requests and instead enters a state where it becomes unresponsive to legitimate traffic. This behavior aligns with CWE-400 vulnerability category which encompasses unspecified denial of service conditions in software systems.
The operational impact of this vulnerability extends beyond simple availability disruption as it affects core identity access management services that organizations depend upon for secure authentication and authorization processes. When the reverse proxy component becomes unresponsive, legitimate users attempting to access protected applications or services may experience complete service interruption. This creates cascading effects throughout enterprise environments where these security platforms serve as critical infrastructure components for managing user access across multiple applications and systems.
Security implications of this vulnerability are particularly concerning given that it affects identity management solutions that typically operate in highly privileged positions within enterprise security architectures. An attacker could potentially exploit this weakness to disrupt business operations, gain unauthorized access to sensitive systems through service disruption, or create conditions that facilitate more sophisticated attacks. The vulnerability's presence in both containerized and traditional deployment models means organizations must consider multiple attack vectors when assessing their exposure.
Organizations should implement immediate mitigations including configuration hardening of reverse proxy settings, implementing rate limiting controls, and monitoring for anomalous request patterns that might indicate exploitation attempts. Network segmentation strategies should be employed to limit the potential impact of successful attacks, while regular security assessments should verify proper configuration of these components. The vulnerability also highlights the importance of keeping identity access management solutions updated with the latest security patches from IBM, as this represents a known weakness that has been addressed in subsequent releases according to standard security maintenance practices.
This issue demonstrates the critical nature of proxy and reverse proxy configurations in enterprise security infrastructure and aligns with ATT&CK technique T1498 which covers denial of service attacks targeting systems and services. Organizations should conduct comprehensive vulnerability assessments across their entire identity access management ecosystem to identify similar weaknesses that might exist in other components or configurations within their security infrastructure.