Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings in github.com/ellanetworks/core

Open Source Vulnerabilities CVE-2026-32320

Ella Core is a 5G core designed for private networks. Prior to 1.5.1, Ella Core panics when processing a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings, resulting in a denial of service. An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers. No authentication is required. This vulnerability is fixed in 1.5.1.

Open Source Vulnerabilities GHSA-j478-p7vq-3347

## Summary Ella Core panics when processing a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings, resulting in a denial of service. ## Impact An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers. No authentication is required. ## Fix Added length validation on NR algorithm bitstrings before accessing them in the PathSwitchRequest handler.

Open Source Vulnerabilities GO-2026-4691

Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings in github.com/ellanetworks/core