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CVE-2026-75020

Apache APISIX: ldap-auth plugin cross-subtree identity impersonation

Published: Aug 27, 2026Updated: Aug 31, 2026 Sources: CVE List NVDCWE-90
8.1HIGH
NVD MITRE
EPSS Score
0.5%
Top 56.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-90

Affected Products

Apache Software Foundation
oss-project·USaka apache foundation
Apache APISIX
Networking Infrastructure / load-balancer-proxy
apache
oss-project·USaka apache http server, apache httpd
apisixOn-premNetwork Device
Networking Infrastructure / load-balancer-proxy

Exploitability

Official Patch Available
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References

https://lists.apache.org/thread/d4007wk6dbl9mxy5h05zxwn8fsg13bxt
lists.apache.org
http://www.openwall.com/lists/oss-security/2026/08/26/14
openwall.com

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