Moderate severityNVD Advisory· Published Mar 23, 2026· Updated Mar 24, 2026
Ella Core panics on invalid PDU Session IDs in NGAP messages
CVE-2026-33281
Description
Ella Core is a 5G core designed for private networks. Versions prior to 1.6.0 panic when processing NGAP messages with invalid PDU Session IDs outside of 1-15. 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. Version 1.6.0 added PDU Session ID validations during NGAP message handling.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/ellanetworks/coreGo | < 1.6.0 | 1.6.0 |
Affected products
3- ghsa-coords2 versionspkg:golang/github.com/ellanetworks/corepkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6
< 1.6.0+ 1 more
- (no CPE)range: < 1.6.0
- (no CPE)range: < 0.0.20260326T203309-150000.1.155.2
- Range: < 1.6.0
Patches
Vulnerability mechanics
References
3- github.com/advisories/GHSA-q669-4gmv-g8mfghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-33281ghsaADVISORY
- github.com/ellanetworks/core/security/advisories/GHSA-q669-4gmv-g8mfghsax_refsource_CONFIRMWEB
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