goauthentik up to 2025.8.4/2025.10.1 client_id/client_secret authentication by alternate name

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability was found in goauthentik authentik up to 2025.8.4/2025.10.1. It has been rated as problematic. This affects an unknown part. This manipulation of the argument client_id/client_secret causes authentication by alternate name. This vulnerability appears as CVE-2025-64521. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in goauthentik authentik up to 2025.8.4/2025.10.1. Affected by this vulnerability is an unknown function. The manipulation of the argument client_id/client_secret with an unknown input leads to a authentication by alternate name vulnerability. The CWE definition for the vulnerability is CWE-289. The product performs authentication based on the name of a resource being accessed, or the name of the actor performing the access, but it does not properly check all possible names for that resource or actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

authentik is an open-source Identity Provider. Prior to versions 2025.8.5 and 2025.10.2, when authenticating with client_id and client_secret to an OAuth provider, authentik creates a service account for the provider. In previous authentik versions, authentication for this account was possible even when the account was deactivated. Other permissions are correctly applied and federation with other providers still take assigned policies correctly into account. authentik versions 2025.8.5 and 2025.10.2 fix this issue. A workaround involves adding a policy to the application that explicitly checks if the service account is still valid, and deny access if not.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2025-64521 since 11/05/2025. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are necessary for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2025.8.5 or 2025.10.2 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.6

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.8
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authentication by alternate name
CWE: CWE-289 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: authentik 2025.8.5/2025.10.2

Timelineinfo

11/05/2025 CVE reserved
11/19/2025 +14 days Advisory disclosed
11/19/2025 +0 days VulDB entry created
11/19/2025 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-64521 (🔒)
GCVE (CVE): GCVE-0-2025-64521
GCVE (VulDB): GCVE-100-332983

Entryinfo

Created: 11/19/2025 19:48
Changes: 11/19/2025 19:48 (63)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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