Apache APISIX 2.113.17 LDAP Injection via Improper Query Neutralization
CVE-2026-75020 Published on August 27, 2026
Apache APISIX: ldap-auth plugin cross-subtree identity impersonation
Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') vulnerability in Apache APISIX.
A caller who holds valid credentials for one entry in the LDAP directory can authenticate through APISIX as a consumer mapped to a different entry, one the plugin's configured scope was meant to keep out of reach.
This issue affects Apache APISIX: from 2.11.0 through 3.17.0.
Users are recommended to upgrade to version 3.18.0, which fixes the issue.
Vulnerability Analysis
CVE-2026-75020 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a LDAP Injection Vulnerability?
The software constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.
CVE-2026-75020 has been classified to as a LDAP Injection vulnerability or weakness.
Products Associated with CVE-2026-75020
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Affected Versions
Apache Software Foundation Apache APISIX:- Version 2.11.0, <= 3.17.0 is affected.