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Vulnerability details: VCID-a1y7-cmk1-4ffn
Vulnerability ID VCID-a1y7-cmk1-4ffn
Aliases CVE-2026-39942
GHSA-393c-p46r-7c95
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (5)
CWE-284 Improper Access Control
CWE-639 Authorization Bypass Through User-Controlled Key
CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.0004 https://api.first.org/data/v1/epss?cve=CVE-2026-39942
epss 0.0004 https://api.first.org/data/v1/epss?cve=CVE-2026-39942
epss 0.0004 https://api.first.org/data/v1/epss?cve=CVE-2026-39942
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-393c-p46r-7c95
cvssv3.1 8.5 https://github.com/directus/directus
generic_textual HIGH https://github.com/directus/directus
cvssv3.1 8.5 https://github.com/directus/directus/releases/tag/v11.17.0
generic_textual HIGH https://github.com/directus/directus/releases/tag/v11.17.0
ssvc Track https://github.com/directus/directus/releases/tag/v11.17.0
cvssv3.1 8.5 https://github.com/directus/directus/security/advisories/GHSA-393c-p46r-7c95
cvssv3.1_qr HIGH https://github.com/directus/directus/security/advisories/GHSA-393c-p46r-7c95
generic_textual HIGH https://github.com/directus/directus/security/advisories/GHSA-393c-p46r-7c95
ssvc Track https://github.com/directus/directus/security/advisories/GHSA-393c-p46r-7c95
cvssv3.1 8.5 https://nvd.nist.gov/vuln/detail/CVE-2026-39942
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2026-39942
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-39942
https://github.com/directus/directus
https://nvd.nist.gov/vuln/detail/CVE-2026-39942
GHSA-393c-p46r-7c95 https://github.com/advisories/GHSA-393c-p46r-7c95
GHSA-393c-p46r-7c95 https://github.com/directus/directus/security/advisories/GHSA-393c-p46r-7c95
v11.17.0 https://github.com/directus/directus/releases/tag/v11.17.0
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N Found at https://github.com/directus/directus
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N Found at https://github.com/directus/directus/releases/tag/v11.17.0
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-09T17:47:33Z/ Found at https://github.com/directus/directus/releases/tag/v11.17.0
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N Found at https://github.com/directus/directus/security/advisories/GHSA-393c-p46r-7c95
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-09T17:47:33Z/ Found at https://github.com/directus/directus/security/advisories/GHSA-393c-p46r-7c95
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-39942
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.12266
EPSS Score 0.0004
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:46:05.195395+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2026/39xxx/CVE-2026-39942.json 38.6.0