medium6.5
CVE-2026-33907
Ella Core Panics during NAS Authentication Response/Failure with missing IEs
Impact
Ella Core is a 5G core designed for private networks. Versions prior to 1.7.0 panic when processing Authentication Response and Authentication Failure NAS message missing IEs. An attacker able to send crafted NAS messages to Ella Core can crash the process, causing service disruption for all connected subscribers. No authentication is required. Version 1.7.0 added IE presence verification to NAS message handling.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/ellanetworks/core | < 1.7.0 | 1.7.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Ellanetworks | Ella Core | before 1.7.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/ellanetworks/core/commit/52962660e3bd3e23c7e96b0da270ac1e0e705273
- https://github.com/ellanetworks/core/releases/tag/v1.7.0
- https://github.com/ellanetworks/core/security/advisories/GHSA-55q8-2gwx-29pc
- https://github.com/advisories/GHSA-55q8-2gwx-29pc
- https://nvd.nist.gov/vuln/detail/CVE-2026-33907