CVE-2026-44475: Github.com/ellanetworks/core Ella Core Has A UE Vulnerability

MODERATE
Advisory Identifier: GHSA-pwfh-mqp3-pqwj
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CVSS 6.1
CWE-358
Published
Advisory Summary

CVE-2026-44475 is a MODERATE (CVSS 6.1) ella core has a ue vulnerability (CWE-358: Improperly Implemented Security Check for Standard) affecting Github.com/ellanetworks/core libraries in the Go ecosystem. The issue involves ella core has a ue security capability bypass on ngap pathswitchrequest. Remediation is available by upgrading affected packages to version 1.10.0.

CVE-2026-44475 at a Glance

CVE Identifier CVE-2026-44475
GHSA Identifier GHSA-pwfh-mqp3-pqwj
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-358: Improperly Implemented Security Check for Standard
Affected Product Github.com/ellanetworks/core
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L).

Attack Vector Adjacent (AV:A)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2026-44475

To remediate this vulnerability, upgrade all affected Github.com/ellanetworks/core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/ellanetworks/core fixed: 1.10.0 
Upgrade github.com/ellanetworks/core to 1.10.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/ellanetworks/core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-44475, inspect your project dependencies for Github.com/ellanetworks/core:

inspect dependencies for github.com/ellanetworks/core

Analyze the terminal output to locate any version of Github.com/ellanetworks/core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.10.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-358: Improperly Implemented Security Check for Standard, where the product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique. In Github.com/ellanetworks/core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## Summary 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. ## Impact A gNB can corrupt Ella Core's stored UE security capabilities for a target UE. ## Fix The PathSwitchRequest handler now compares the received UE Security Capabilities against Ella Core's locally stored values, preserves the stored values on mismatch, returns them in the PathSwitchRequestAcknowledge, and logs the event.

CVE-2026-44475 Affected Github.com/ellanetworks/core Versions

1 component(s)
Fixed Versions:
1.10.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/ellanetworks/core
golang/github.com/ellanetworks/core
Go
< 1.10.0
1.10.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/ellanetworks/core/security/advisories/GHSA-pwfh-mqp3-pqwj
NVD — CVE-2026-44475 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-44475
Github.com/ellanetworks/core Source Repository REPOSITORY
https://github.com/ellanetworks/core

Frequently Asked Questions

What is CVE-2026-44475?
CVE-2026-44475 is a security vulnerability in Github.com/ellanetworks/core involving Ella Core has a UE Security Capability bypass on NGAP PathSwitchRequest under CWE-358: Improperly Implemented Security Check for Standard.
Which Github.com/ellanetworks/core versions are affected?
Affected versions include releases prior to 1.10.0 across affected packages: github.com/ellanetworks/core.
What version fixes CVE-2026-44475?
Upgrading to 1.10.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/ellanetworks/core affected?
Yes, github.com/ellanetworks/core is affected in releases prior to 1.10.0. Upgrade your dependency to 1.10.0 or later.
What is the CVSS score of CVE-2026-44475?
CVE-2026-44475 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L.
What CWE is associated with CVE-2026-44475?
CVE-2026-44475 is classified under CWE-358: Improperly Implemented Security Check for Standard (The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.).
How can I check Go dependencies for CVE-2026-44475?
Run the dependency tree command: 'inspect dependencies for github.com/ellanetworks/core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-pwfh-mqp3-pqwj",
  "modified" : "2026-06-08T23:48:59Z",
  "published" : "2026-05-11T15:29:37Z",
  "aliases" : [ "CVE-2026-44475" ],
  "summary" : "Ella Core has a UE Security Capability bypass on NGAP PathSwitchRequest",
  "details" : "## Summary\n\nElla 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.\n\n## Impact\n\nA gNB can corrupt Ella Core's stored UE security capabilities for a target UE.\n\n## Fix\n\nThe PathSwitchRequest handler now compares the received UE Security Capabilities against Ella Core's locally stored values, preserves the stored values on mismatch, returns them in the PathSwitchRequestAcknowledge, and logs the event.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/ellanetworks/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.10.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/ellanetworks/core/security/advisories/GHSA-pwfh-mqp3-pqwj"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-44475"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ellanetworks/core"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-358" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-11T15:29:37Z",
    "nvd_published_at" : "2026-05-27T17:16:39Z"
  }
}