CVE-2026-8381 Broken Access Control in TeamViewer DEX Platform (On Premises)
Low-privileged users can access administrative functions due to missing authorization checks in TeamViewer DEX Platform backend APIs.
- 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-2026-8381?
CVE-2026-8381 is a medium-severity missing authorization vulnerability in TeamViewer DEX (On-premises), published on 22 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A broken access control vulnerability exists in the TeamViewer DEX Platform (On‑Premises) prior version 9.2. Certain backend API endpoints do not correctly enforce authorization checks, allowing an authenticated user with low privileges to perform actions and access resources intended only for higher‑privileged roles. An attacker with low‑privileged credentials may exploit this to gain unauthorized access to administrative or sensitive functionality.
Weakness: CWE-862
Which versions are affected by CVE-2026-8381?
How do I fix CVE-2026-8381?
No fix has been published for CVE-2026-8381 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-2026-8381 being exploited?
There is no known exploitation of CVE-2026-8381 in the wild and no public exploit code.
Sources
Also known as GHSA-x4qq-w73c-72mv.