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  4. CVE 2026 75020 apache apisix ldap auth plugin cross subtree
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Back to active CVEs
High · CVSS 8.1CVE-2026-75020

Apache APISIX: ldap-auth plugin cross-subtree identity impersonationCVE-2026-75020

Answer in brief

CVE-2026-75020 records a High severity (CVSS 8.1) vulnerability in Apache APISIX: ldap-auth plugin cross-subtree identity impersonation. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/Apache APISIX (generic), Apache Software Foundation/Apache APISIX (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 27, 2026Updated Aug 31, 2026Source checked Oct 11, 2026First seen by HOL Aug 27, 2026Material review Aug 31, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.1
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Apache Software Foundation/Apache APISIX (generic), Apache Software Foundation/Apache APISIX (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:apache:apisix:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Apache Software Foundation/Apache APISIXgeneric2.11.0Not reported
Apache Software Foundation/Apache APISIXgeneric>=2.11.0 <=3.17.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/Apache APISIX, Apache Software Foundation/Apache APISIX.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Aug 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 31, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 27, 2026

Sources and claim methodology

  • Source referencelists.apache.org
  • Source referenceopenwall.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

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Record context

Vulnerability class
Secret Exfiltration
EPSS
Not reported
CWE IDs
CWE-90
Source
CVE List V5
Source checked
Oct 11, 2026
References
2 linked sources
Open source record