CVE-2024-38371Network attack vector

Unauthorized OAuth token issuance via skipped application bindings

Published Jun 28, 2024 · Updated Aug 2, 2024

Improper authorization in authentik allows remote attackers to obtain OAuth tokens for applications whose access policies deny them. The OAuth2 Device Code flow completed token issuance without evaluating policy, user, or group bindings attached to the target application. Exploitation requires completing that flow as an identified user who fails the application's bindings; the resulting token grants the application's configured access.

CVSS severity8.6
High
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in authentik allows remote attackers to obtain OAuth tokens for applications whose access policies deny them. The OAuth2 Device Code flow completed token issuance without evaluating policy, user, or group bindings attached to the target application. Exploitation requires completing that flow as an identified user who fails the application's bindings; the resulting token grants the application's configured access.

The record

CVE
CVE-2024-38371
Published
Jun 28, 2024
Updated
Aug 2, 2024
Vendor
Authentik Security Inc.
Product
authentik
Classifications
CWE-285, CWE-284, T1550.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2024.2.4
  2. Affected versionversion=0 <2024.4.3
  3. Affected versionversion=0 <2024.6.0
  4. Affected versionversion=< 2024.2.4
  5. Affected versionversion=< 2024.4.3
  6. Affected versionversion=< 2024.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Authentik Security Inc. · authentikversion=0 <2024.2.4; version=0 <2024.4.3; version=0 <2024.6.0; version=< 2024.2.4; version=< 2024.4.3; version=< 2024.6.0

Published CVSS scores

8.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
CWE-284Improper Access Control
T1550.001Application Access Token

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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