CVE-2026-40867 Horilla: Unauthorized Helpdesk Attachment Access via Attachment ID Manipulation
Authenticated users can access other users' helpdesk attachments by manipulating attachment IDs, exposing sensitive internal documents.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-40867?
CVE-2026-40867 is a high-severity missing authorization vulnerability in horilla-opensource horilla, published on 21 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Horilla is a free and open source Human Resource Management System (HRMS). In 1.5.0, a broken access control vulnerability in the helpdesk attachment viewer allows any authenticated user to view attachments from other tickets by changing the attachment ID. This can expose sensitive support files and internal documents across unrelated users or teams.
Which versions are affected by CVE-2026-40867?
How do I fix CVE-2026-40867?
No fix has been published for CVE-2026-40867 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-40867 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40867 exists.
Sources
Also known as GHSA-j6qp-j853-qrff.