CVE-2026-32319 Ella Core: Unauthenticated AMF DoS via malformed InitialUEMessage with undersized integrity-protected NAS payload

What is CVE-2026-32319?

CVE-2026-32319 is a high-severity denial of service vulnerability in ellanetworks core, published on 12 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Ella Core is a 5G core designed for private networks. Prior to 1.5.1, Ella Core panics when processing a malformed integrity protected NGAP/NAS message with a length under 7 bytes. 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. This vulnerability is fixed in 1.5.1.

Weakness: CWE-125

Which versions are affected by CVE-2026-32319?

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-2026-32319?

Upgrade github.com/ellanetworks/core to 1.5.1 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-32319 being exploited?

There is no known exploitation of CVE-2026-32319 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-2026-33906 Ella Core has Privilege Escalation via Database Restore by NetworkManager role High 7.2
• 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-m9pm-w3gv-c68f, GO-2026-4692.