medium6.5
CVE-2026-32320
Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings
Impact
## 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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/ellanetworks/core | < 1.5.1 | 1.5.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Ellanetworks | Ella Core | before 1.5.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/ellanetworks/core/security/advisories/GHSA-j478-p7vq-3347
- https://github.com/advisories/GHSA-j478-p7vq-3347
- https://github.com/ellanetworks/core/releases/tag/v1.5.1
- https://nvd.nist.gov/vuln/detail/CVE-2026-32320
- https://pkg.go.dev/vuln/GO-2026-4691