Directus Allows Single Sign-On User Enumeration

Answer in brief

CVE-2024-39896 records a High severity (CVSS 7.5) vulnerability in Directus Allows Single Sign-On User Enumeration. The current sources do not mark it as known exploited. The current feed maps directus (npm). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

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

Published Jul 8, 2024Updated Sep 10, 2026Source checked Sep 10, 2026First seen by HOL Sep 10, 2026Material review Sep 10, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.5
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 7.5. 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 directus (npm). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
directusnpm	>=9.11 <10.13.0	10.13.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for directus.
Review the reported fix. Update directus to 10.13.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jul 8, 2024
Evidence: source:osv:source_dates:source-dates:record
Source modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:record
First seen by HOL
Sep 10, 2026

Sources and claim methodology

Upstream source description

### Impact When relying on SSO providers in combination with local authentication it can be possible to enumerate existing SSO users in the instance. This is possible because if an email address exists in Directus and belongs to a known SSO provider then it will throw a "helpful" error that the user belongs to another provider. ### Reproduction 1. Create a user using a SSO provider `[email protected]`. 2. Try to log-in using the regular login form (or the API) 3. When using a valid email address | **APP** | **API** | | --- | --- | | ![image](https://github.com/directus/directus/assets/9389634/1da3301d-226f-46a7-bfb8-3f6fb9bc55cd) | ![image](https://github.com/directus/directus/assets/9389634/50cab310-7d1c-4241-a6be-d06542565767) | 4. When using an invalid email address | **APP** | **API** | | --- | --- | | ![image](https://github.com/directus/directus/assets/9389634/7b97659e-b49c-410b-872e-e36786b6e41e) | ![image](https://github.com/directus/directus/assets/9389634/d26ccba7-bb27-437e-991e-99c10941bbe7) | 5. Using this differing error it is possible to determine whether a specific email address is present in the Directus instance as an SSO user. ### Workarounds When only using SSO for authentication then you can work around this issue by disabling local login using the following environment variable `AUTH_DISABLE_DEFAULT="true"` ### References Implemented as feature in https://github.com/directus/directus/pull/13184 https://owasp.org/www-project-web-security-testing-guide/v42/4-Web_Application_Security_Testing/03-Identity_Management_Testing/04-Testing_for_Account_Enumeration_and_Guessable_User_Account

Quoted source text, attributed separately from HOL analysis.