CVE-2026-75020CWE-90

CVE-2026-75020

High · published August 27, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
43.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
7.0 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
EPSS
0.00542 · 43.6th percentile
Weakness
CWE-90 · Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Published
2026-08-27T14:16Z
Affected products (1)
ProductVersionsFixed in
apache/apisix≥ 2.11.0, < 3.18.03.18.0
References (2)
https://lists.apache.org/thread/d4007wk6dbl9mxy5h05zxwn8fsg13bxt · [email protected]http://www.openwall.com/lists/oss-security/2026/08/26/14 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 28 AUG 06:53Z
    EPSS moved — → 0%
    epss
  • 27 AUG 09:14Z
    Apache APISIX: ldap-auth plugin cross-subtree identity impersonation
    cvelistv5