CVE-2026-86212 Open5GS AMF/MME improper authorization
Remote attackers can bypass authorization in Open5GS AMF/MME components, potentially gaining unauthorized access to network functions.
- 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-2026-86212?
CVE-2026-86212 is a medium-severity missing authorization vulnerability in Open5GS, published on 6 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been found in Open5GS 2.7.7/2.8.0. This vulnerability affects unknown code of the component AMF/MME. The manipulation leads to improper authorization. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The identifier of the patch is 9468de94caed2fc940f4a23cbf734651896d0fde. To fix this issue, it is recommended to deploy a patch.
Which versions are affected by CVE-2026-86212?
How do I fix CVE-2026-86212?
No fix has been published for CVE-2026-86212 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-2026-86212 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86212 exists.
Sources
Also known as GHSA-hmq7-pg9j-qvf9.