CVE-2026-30079 Auth bypass in n/a

Critical 9.8 Published 7 Apr 2026 Updated 9 Apr 2026

Attackers can bypass authentication in OpenAirInterface AMF by sending out-of-sequence messages, allowing unauthorized UE registration.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-30079?

CVE-2026-30079 is a critical authentication bypass vulnerability in n/a, published on 7 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In OpenAirInterface V2.2.0 AMF, Out of sequence messages causes incorrect state transition during UE registration procedure. This allows authentication to be bypassed completely. If a SecurityModeComplete message is sent after InitialUERegistration, a registration reject is received followed by a registration accept! This leads the UE to be registered without proper authentication.

Weakness: CWE-288

Which versions are affected by CVE-2026-30079?

It affects 1 product.

Products include Openairinterface Oai-Cn5g-Amf.

How do I fix CVE-2026-30079?

No fix has been published for CVE-2026-30079 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-30079 being exploited?

There is no known exploitation of CVE-2026-30079 in the wild and no public exploit code.

Sources

Also known as GHSA-j69j-3gv3-pwvg.