This vulnerability (CVE-2026-4104) involves improper neutralization of special elements used in an SQL command (CWE-89) within the TeknoPass product by Akmer Informatics Automation Industry and Trade Ltd. Co. It allows an attacker to perform SQL injection via a user-controlled primary key, resulting in authorization bypass. Affected versions include TeknoPass from 20210501 through 20260429. The CVSS v3.1 base score is 9.8, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. The vulnerability is published and reserved since March 2026 but lacks a vendor-provided patch or remediation level. The product is not a cloud service, so remediation depends on vendor updates.

Successful exploitation of this vulnerability could allow an unauthenticated attacker to bypass authorization controls, potentially accessing, modifying, or deleting sensitive data within the TeknoPass system. The critical CVSS score (9.8) indicates a severe impact on confidentiality, integrity, and availability of the affected system. No known exploits have been reported in the wild yet.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch or temporary fix is currently available, users should monitor vendor communications for updates. In the meantime, restricting network access to the affected TeknoPass instances and applying compensating controls such as input validation or web application firewalls may reduce exposure, but these are not confirmed mitigations by the vendor.