CVE-2026-44475

Ella Core: UE Security Capability bypass on NGAP PathSwitchRequest

State: Published
Severity: 6.1 Medium
Published: May 27, 2026
Updated: May 28, 2026
Reserved: May 6, 2026

Description

Ella Core is a 5G core designed for private networks. Prior to 1.10.0, Ella Core does not verify the UE Security Capabilities received in NGAP PathSwitchRequest messages against its locally stored values. A malicious gNB can overwrite Ella Core's stored UE security capabilities for any UE with arbitrary values by sending a single crafted PathSwitchRequest. This vulnerability is fixed in 1.10.0.

Scores

CVSS	Score	Vector	Source
3.1	6.1 Medium	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L	GitHub_M

Weaknesses

CWE-358 Improperly Implemented Security Check for Standard

Affected Products

Product	Versions
coreellanetworks	< 1.10.0Affected

References

https://github.com/ellanetworks/core/security/advisories/GHSA-pwfh-mqp3-pqwj

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