# CVE-2026-16071

## Summary

- **CVE ID:** CVE-2026-16071
- **Severity:** MEDIUM
- **CVSS Score:** 5.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N)
- **CWE:** CWE-90
- **Published:** Aug 5, 2026
- **Last Modified:** Aug 31, 2026

## Description

A flaw was found in the LDAP storage provider of Keycloak, which is used to federate user identities from external directories. The issue occurs when a delegated administrator performs a search using a specific LDAP entry Distinguished Name (DN). Due to missing validation, the system allows lookups for users located outside the configured search boundary, leading to the disclosure of account information from unauthorized parts of the directory and unintended importing of those users into local storage.

## Affected Products

- Red Hat — Red Hat build of Keycloak 26.4 (26.4-22)
- Red Hat — Red Hat build of Keycloak 26.4 (26.4.14-1)
- Red Hat — Red Hat build of Keycloak 26.6 (26.6-11)
- Red Hat — Red Hat build of Keycloak 26.6 (26.6.5-1)

## References

- [CNA](https://access.redhat.com/security/cve/CVE-2026-16071)
- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=2501720)
- [CNA](https://access.redhat.com/errata/RHSA-2026:50846)
- [CNA](https://access.redhat.com/errata/RHSA-2026:50847)
- [CNA](https://access.redhat.com/errata/RHSA-2026:50848)
- [CNA](https://access.redhat.com/errata/RHSA-2026:50849)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.23%
- **EPSS Percentile:** 13.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._