CVE-2026-53548 Termix: IDOR — Authenticated user can fetch SSH passwords for hosts owned by other users
Authenticated users can retrieve other users' SSH passwords via IDOR, enabling unauthorized access to managed systems.
- 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-2026-53548?
CVE-2026-53548 is a critical missing authorization vulnerability in Termix-SSH Termix, published on 19 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. Prior to 2.6.1, the GET /host/db/host/:id/password endpoint in src/backend/database/routes/host.ts accepts an authenticated user's numeric host ID and the field=password or field=sudoPassword query without enforcing host ownership during credential resolution. A failed requester-scoped lookup can resolve the host with the owner's context and return the owner's plaintext credential, allowing any authenticated user with a valid JWT to enumerate sequential hosts.id values and retrieve SSH or sudo passwords belonging to other users. The disclosed credentials can then be used to access and control managed systems outside the Termix instance. This issue is fixed in version 2.6.1.
Which versions are affected by CVE-2026-53548?
How do I fix CVE-2026-53548?
No fix has been published for CVE-2026-53548 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-2026-53548 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53548 exists.
Sources
Also known as GHSA-j6h8-mww6-pgw6.