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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-55106 Detail

Description

authentik is an open-source identity provider. Prior to 2026.2.6 and 2026.5.5, a diagnostic action on the LDAP Source API does not enforce the object-level read-authorization filter used by the rest of the API. Any party able to reach the API, including an unauthenticated client, can invoke the diagnostic action against a configured LDAP Source. The server then connects to the upstream directory using the source's configured bind credentials and returns a bounded set of directory entries. The response exposes the distinguished names of those entries and the names of the attributes present on them, revealing directory structure, naming conventions, and the existence of specific accounts and groups, but not attribute values. Deployments without a configured LDAP Source are not affected. This issue is fixed in versions 2026.2.6 and 2026.5.5.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/goauthentik/authentik/commit/e638de23217480854ec5e48ca6fceae479321f99 GitHub, Inc.
https://github.com/goauthentik/authentik/commit/fc336da4bd32bef52800c77d91aa0b82c5533041 GitHub, Inc.
https://github.com/goauthentik/authentik/pull/24055 GitHub, Inc.
https://github.com/goauthentik/authentik/pull/24060 GitHub, Inc.
https://github.com/goauthentik/authentik/releases/tag/version/2026.2.6 GitHub, Inc.
https://github.com/goauthentik/authentik/releases/tag/version/2026.5.5 GitHub, Inc.
https://github.com/goauthentik/authentik/security/advisories/GHSA-h8ff-c3h7-2gf8 GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-862 Missing Authorization GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-55106
NVD Published Date:
08/18/2026
NVD Last Modified:
08/18/2026
Source:
GitHub, Inc.