CVE-2026-75020: CWE-90 Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in Apache Software Foundation Apache APISIX
Description
CVE-2026-75020 is an LDAP Injection vulnerability in Apache APISIX that allows a user with valid LDAP credentials to authenticate as a different consumer than intended. This affects versions from 2.11.0 through 3.17.0. The issue is fixed in version 3.18.0. The vulnerability has a high severity score of 7.0.
CVSS v4.0
Score 7.0high
Affected software
Apache Software Foundation
Apache APISIX
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Apache APISIX involves improper neutralization of special elements in LDAP queries (CWE-90), allowing an authenticated user to bypass intended access controls by authenticating as a different consumer mapped to another LDAP entry. The flaw affects Apache APISIX versions from 2.11.0 through 3.17.0. The vendor has addressed the issue in version 3.18.0.
Potential Impact
An attacker with valid LDAP credentials for one directory entry can authenticate through APISIX as a different consumer, potentially gaining unauthorized access to resources or privileges that should be restricted by the plugin's configured scope. This could lead to unauthorized access within systems relying on APISIX for authentication and authorization.
Mitigation Recommendations
Users should upgrade Apache APISIX to version 3.18.0 or later, where this LDAP Injection vulnerability is fixed. No other official remediation or temporary fixes are indicated. Patch status is confirmed by the vendor advisory recommending upgrade to 3.18.0.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-08-17T13:31:18.541Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9001f3acd9273b491092c4
Added to database: 08/27/2026, 09:22:59 UTC
Last enriched: 09/09/2026, 12:37:18 UTC
Last updated: 10/10/2026, 06:48:19 UTC
Views: 63
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