CVE-2026-11923 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 Reverse Proxy in certain configurations may provide weaker than expected cryptographic validation of user supplied data.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 08/12/2026
This vulnerability affects IBM Security Verify Access and IBM Verify Identity Access products across specific version ranges, presenting a significant cryptographic weakness in user data validation processes. The flaw manifests when these identity access management solutions operate in certain configuration states where they fail to implement robust cryptographic validation mechanisms for input data. This cryptographic weakness creates potential attack vectors that could be exploited by malicious actors to bypass authentication controls or manipulate authentication flows.
The technical implementation issue stems from inadequate cryptographic validation routines within the reverse proxy components of these security solutions. When user-supplied data passes through the system's cryptographic validation layer, the implementation does not sufficiently verify the integrity and authenticity of the input parameters. This weakness can be attributed to improper handling of cryptographic signatures or hash validations that should ensure data has not been tampered with during transmission or processing. The vulnerability specifically impacts the reverse proxy functionality within containerized deployments, suggesting configuration management issues in how cryptographic parameters are applied across different deployment models.
The operational impact of this vulnerability extends beyond simple authentication bypass scenarios, potentially allowing attackers to manipulate session tokens, modify authentication requests, or impersonate legitimate users within the access management ecosystem. Attackers could exploit this weakness to perform unauthorized access attempts against protected resources, potentially escalating privileges or gaining access to sensitive data that should be restricted to authorized personnel only. The vulnerability affects both the traditional deployment models and containerized environments, indicating a systemic issue in how cryptographic validation is implemented across different infrastructure configurations.
Organizations using these IBM security solutions should implement immediate configuration reviews to identify systems operating in vulnerable states where weak cryptographic validation is enabled. Security teams must ensure that all deployments follow proper cryptographic standards including implementation of strong hash algorithms, proper signature validation procedures, and robust input sanitization measures. The mitigation strategy should include mandatory updates to supported versions where the cryptographic validation has been corrected, along with comprehensive configuration audits to eliminate weak cryptographic settings in current deployments.
This vulnerability aligns with CWE-310 cryptographic weakness classifications and represents a significant concern under the ATT&CK framework's privilege escalation and credential access tactics. The weakness directly impacts the integrity of authentication processes and could enable attackers to perform man-in-the-middle attacks against authentication flows, particularly when the reverse proxy components handle sensitive user data exchanges. Organizations should consider implementing additional monitoring measures to detect anomalous authentication patterns that might indicate exploitation attempts targeting this cryptographic validation weakness.