CVE-2026-1342: IBM Security Verify Access Auth Bypass Flaw

CVE-2026-1342 Overview

CVE-2026-1342 is a high-severity vulnerability affecting multiple IBM identity and access management products. The vulnerability allows a locally authenticated user to execute malicious scripts from outside of its control sphere, potentially leading to privilege escalation and unauthorized access to sensitive systems.

This vulnerability is classified under CWE-829 (Inclusion of Functionality from Untrusted Control Sphere), which occurs when software imports, requires, or includes executable functionality from a source outside of its intended control sphere. In this case, IBM Verify Identity Access and related container products fail to properly validate the source of executable scripts, allowing attackers with local access to inject and execute arbitrary code.

Critical Impact

Local authenticated attackers can execute malicious scripts from untrusted sources, potentially compromising identity management infrastructure and gaining elevated privileges across the environment.

Affected Products

• IBM Verify Identity Access Container 11.0 through 11.0.2
• IBM Security Verify Access Container 10.0 through 10.0.9.1
• IBM Verify Identity Access 11.0 through 11.0.2
• IBM Security Verify Access 10.0 through 10.0.9.1

Discovery Timeline

• April 8, 2026 - CVE-2026-1342 published to NVD
• April 9, 2026 - Last updated in NVD database

Technical Details for CVE-2026-1342

Vulnerability Analysis

The vulnerability exists in how IBM Verify Identity Access and related products handle script execution. The affected components fail to enforce proper boundaries when loading and executing scripts, allowing functionality to be imported from sources outside the application's intended control sphere.

This flaw is particularly concerning in identity and access management products, as these systems typically handle sensitive authentication data and control access to critical enterprise resources. An attacker who gains local authenticated access could leverage this vulnerability to:

• Execute arbitrary scripts with the privileges of the affected application
• Potentially escalate privileges within the identity management infrastructure
• Access or modify authentication policies and user credentials
• Pivot to other connected systems that rely on the compromised IAM solution

The attack requires local access and authentication, which limits the attack surface but still presents a significant risk in environments where multiple users or administrators have access to systems running the affected software.

Root Cause

The root cause is CWE-829: Inclusion of Functionality from Untrusted Control Sphere. The affected IBM products do not properly validate or restrict the sources from which executable scripts can be loaded. This allows an authenticated local user to place malicious scripts in locations where the application will discover and execute them, bypassing intended security controls.

Attack Vector

The attack vector is local, requiring an authenticated user to have access to the system running the affected IBM software. The attacker can then exploit the vulnerability by:

1. Identifying script loading mechanisms used by the IBM Verify/Security Verify products
2. Placing malicious scripts in directories or locations that the application trusts or searches
3. Triggering the application to load and execute the malicious scripts
4. Achieving code execution with the privileges of the affected application

The vulnerability has a changed scope, meaning successful exploitation can impact resources beyond the vulnerable component's security authority, potentially affecting other systems or services that rely on the compromised identity management infrastructure.

Detection Methods for CVE-2026-1342

Indicators of Compromise

• Unexpected script files appearing in IBM Verify Identity Access installation directories or configuration paths
• Unusual process execution originating from IBM Verify or Security Verify Access services
• Modified or newly created files in locations where the application loads executable content
• Anomalous authentication or authorization events in identity management logs

Detection Strategies

• Monitor file system activity for unauthorized modifications to IBM Verify Identity Access directories
• Implement application whitelisting to detect execution of scripts from unexpected locations
• Deploy endpoint detection and response (EDR) solutions to identify suspicious script execution chains
• Review IBM Verify Access audit logs for unusual administrative actions or configuration changes

Monitoring Recommendations

• Enable detailed logging for all IBM Verify Identity Access and Security Verify Access components
• Configure alerts for file integrity monitoring on application installation and configuration directories
• Monitor process creation events for child processes spawned by IBM Verify services
• Implement network traffic analysis to detect potential data exfiltration following exploitation

How to Mitigate CVE-2026-1342

Immediate Actions Required

• Apply IBM security patches as detailed in IBM Support Article
• Restrict local access to systems running affected IBM Verify and Security Verify products
• Review and audit user accounts with local access to identity management infrastructure
• Implement additional monitoring on affected systems until patches can be applied

Patch Information

IBM has released security updates to address this vulnerability. Administrators should consult the IBM Support Article for detailed patching instructions and download links for the appropriate fixes.

For IBM Verify Identity Access Container products, update to a version later than 11.0.2. For IBM Security Verify Access Container products, update to a version later than 10.0.9.1. Non-container versions of both products should similarly be updated to the latest available security release.

Workarounds

• Limit local user accounts on systems running affected IBM products to only essential administrators
• Implement strict file system permissions to prevent unauthorized script placement
• Use application control solutions to restrict script execution to known, trusted sources
• Consider network segmentation to isolate identity management infrastructure from general user access

# Example: Restrict permissions on IBM Verify installation directories
# Adjust paths according to your installation
chmod 750 /opt/ibm/verify-access
chown root:ibm-admin /opt/ibm/verify-access
# Remove write permissions for non-root users on script directories
find /opt/ibm/verify-access -type d -name "scripts" -exec chmod 755 {} \;
find /opt/ibm/verify-access -type f -name "*.sh" -exec chmod 644 {} \;