CVE-2026-42277

6.5 MEDIUM
Published: May 08, 2026 Modified: May 12, 2026
View on NVD

Description

Onyx is an open-source AI platform. Prior to versions 3.0.9, 3.1.6, and 3.2.6, the GET /chat/file/{file_id} endpoint allows any authenticated user to download any other user's uploaded files by providing the file UUID. The endpoint verifies the caller is authenticated but never checks that the file belongs to them. An attacker who knows or obtains a file UUID can access confidential documents, chat attachments, and other files uploaded by any user in the system. This issue has been patched in versions 3.0.9, 3.1.6, and 3.2.6.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/onyx-dot-app/onyx/security/advisories/GHSA-vg3h-35f7-7w6r
Source: security-advisories@github.com
Vendor Advisory
https://github.com/onyx-dot-app/onyx/security/advisories/GHSA-vg3h-35f7-7w6r
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Vendor Advisory

2 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.5 / 10.0
EPSS (Exploit Probability)
0.2%
10th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

onyx