CVE-2026-39942

Name: CVE-2026-39942
Creator: NVD / NIST
Published: 2026-04-09T17:16:29.813+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.20%

Last modified Jun 17, 2026

CVE-2026-39942 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.17.0, the PATCH /files/{id} endpoint accepts a user-controlled filename_disk parameter. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.17.0, the PATCH /files/{id} endpoint accepts a user-controlled filename_disk parameter. By setting this value to match the storage path of another user's file, an attacker can overwrite that file's content while manipulating metadata fields such as uploaded_by to obscure the tampering. This vulnerability is fixed in 11.17.0.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.20%

10.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Monospace	Directus	< 11.17.0

References

https://github.com/directus/directus/releases/tag/v11.17.0Product, Release Notes
https://github.com/directus/directus/security/advisories/GHSA-393c-p46r-7c95Mitigation, Vendor Advisory

Timeline

Published: Apr 9, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-39942?

How severe is CVE-2026-39942?

CVE-2026-39942 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.

How do I fix CVE-2026-39942?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-39942?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST