CVE-2026-13696 in Liman MYS
Summary
by MITRE • 07/07/2026
Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in HAVELSAN Inc. Liman MYS allows LDAP Injection.
This issue affects Liman MYS: before release.Master.1107.
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Analysis
by VulDB Data Team • 07/07/2026
The vulnerability identified as LDAP injection in HAVELSAN Inc. Liman MYS represents a critical security flaw that undermines the integrity of directory services and authentication mechanisms within the affected system. This weakness stems from improper handling of user input within Lightweight Directory Access Protocol queries, creating an avenue for malicious actors to manipulate directory service operations. The vulnerability specifically impacts versions prior to Master.1107, indicating that the issue was present in earlier releases but may have been addressed in subsequent updates.
The technical root cause of this vulnerability aligns with CWE-90, which describes improper neutralization of special elements used in an LDAP query. When user-supplied data is directly incorporated into LDAP search filters without adequate sanitization or parameterization, attackers can inject malicious LDAP syntax that alters the intended query behavior. This allows adversaries to bypass authentication mechanisms, access unauthorized directory entries, or even execute arbitrary commands depending on the underlying directory service implementation and permissions structure.
From an operational perspective, this vulnerability presents significant risks to organizations relying on Liman MYS for identity management and access control. Attackers could exploit this weakness to enumerate user accounts, extract sensitive directory information, or gain unauthorized access to protected resources within the LDAP directory. The impact extends beyond simple data exposure, as successful exploitation could enable lateral movement within networks where directory services are used for authentication and authorization purposes. This aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation through legitimate credentials.
The security implications are particularly severe in enterprise environments where LDAP directories often serve as central repositories for user identities, group memberships, and access permissions. An attacker who successfully exploits this vulnerability could potentially escalate privileges, compromise multiple system accounts, or establish persistent access to critical infrastructure components that depend on directory services for authentication. The vulnerability's presence in versions before Master.1107 suggests that organizations using these older releases face heightened risk without proper mitigations in place.
Organizations should prioritize immediate remediation by upgrading to version Master.1107 or later, which presumably contains the necessary fixes for this LDAP injection vulnerability. Additionally, implementing proper input validation and parameterization techniques for all LDAP queries remains crucial even when using patched versions. Security teams should conduct thorough assessments of their LDAP directory service configurations and review access controls to minimize potential impact from any remaining vulnerabilities. Network segmentation and monitoring solutions can provide additional layers of protection against exploitation attempts targeting this class of vulnerability.