CVE-2026-33906 Ella Core has Privilege Escalation via Database Restore by NetworkManager role

What is CVE-2026-33906?

CVE-2026-33906 is a high-severity vulnerability in ellanetworks core, published on 27 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Ella Core is a 5G core designed for private networks. Prior to version 1.7.0, the NetworkManager role was granted backup and restore permission. The restore endpoint accepted any valid SQLite file without verifying its contents. A NetworkManager could replace the production database with a tampered copy to escalate to Admin, gaining access to user management, audit logs, debug endpoints, and operator identity configuration that the role was explicitly denied. In version 1.7.0, backup and restore permissions have been removed from the NetworkManager role.

Weakness: CWE-269

Which versions are affected by CVE-2026-33906?

3 open source packages ship an affected version, including github.com/ellanetworks/core. It affects 1 product.

Products include Ellanetworks Ella Core.

How do I fix CVE-2026-33906?

Upgrade github.com/ellanetworks/core to 1.7.0 or later.

Is CVE-2026-33906 being exploited?

There is no known exploitation of CVE-2026-33906 in the wild and no public exploit code.

Other vulnerabilities in ellanetworks core

• CVE-2026-33282 Ella Core panics on malformed NGAP Location Report High 7.5
• CVE-2026-32319 Ella Core: Unauthenticated AMF DoS via malformed InitialUEMessage with undersized integrity-protected NAS payload High 7.5
• CVE-2026-33903 Ella Core panics when processing a crafted NGAP LocationReport message Medium 6.5
• CVE-2026-33904 Ella Core has a Denial of Service via SCTP connection cleanup deadlock Medium 6.5
• CVE-2026-33907 Ella Core Panics during NAS Authentication Response/Failure with missing IEs Medium 6.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-87j9-m7x6-hvw2, GO-2026-4873.