CVE-2026-42277
MEDIUM EPSS 10.1%
Published May 8, 20261mo ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Published May 8, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None
Threat Intelligence
EPSS Exploit Probability
10.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-639
Affected Products 3
References 1
- github.com https://github.com/onyx-dot-app/onyx/security/advisories/GHSA-vg3h-35f7-7w6r
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.