CVE-2026-78158 Open5GS AMF UEContextReleaseRequest Path improper authorization
Remote attackers can bypass authorization checks in the Open5GS AMF UEContextReleaseRequest handler, potentially disrupting 5G network operations.
- 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-2026-78158?
CVE-2026-78158 is a medium-severity missing authorization vulnerability in Open5GS, published on 24 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in Open5GS 2.8.0. This vulnerability affects unknown code of the component AMF UEContextReleaseRequest Path Handler. Executing a manipulation can lead to improper authorization. It is possible to launch the attack remotely.
Which versions are affected by CVE-2026-78158?
How do I fix CVE-2026-78158?
No fix has been published for CVE-2026-78158 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-2026-78158 being exploited?
There is no known exploitation of CVE-2026-78158 in the wild and no public exploit code.
Sources
Also known as GHSA-87xw-rrcr-f94r, GHSA-mg8r-2cvv-xq9j.