Vulnerability-Lookup

CVE-2026-34761 (GCVE-0-2026-34761)

Vulnerability from cvelistv5 – Published: 2026-04-02 19:03 – Updated: 2026-04-03 15:43

Title

Ella Core Panics Upon NGAP handover failure

Summary

Ella Core is a 5G core designed for private networks. Prior to version 1.8.0, Ella Core panics when processing a NGAP handover failure message. An attacker able to cause a gNodeB to send NGAP handover failure messages to Ella Core can crash the process, causing service disruption for all connected subscribers. This issue has been patched in version 1.8.0.

Severity

5.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-476 - NULL Pointer Dereference

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ellanetworks/core/security/adv…	x_refsource_CONFIRM
https://github.com/ellanetworks/core/releases/tag…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ellanetworks	core	Affected: < 1.8.0

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-34761

Vulnerability from fkie_nvd - Published: 2026-04-02 20:16 - Updated: 2026-06-17 10:39

Severity

5.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/ellanetworks/core/releases/tag/v1.8.0	Release Notes
	security-advisories@github.com	https://github.com/ellanetworks/core/security/advisories/GHSA-6gm8-3g4h-w82m	Vendor Advisory

Impacted products

	Vendor	Product	Version
	ellanetworks	ella_core	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "core",
          "vendor": "ellanetworks",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.8.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
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              "versionEndExcluding": "1.8.0",
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          "operator": "OR"
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    {
      "lang": "en",
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    }
  ],
  "id": "CVE-2026-34761",
  "lastModified": "2026-06-17T10:39:34.660",
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GHSA-6GM8-3G4H-W82M

Vulnerability from github – Published: 2026-04-01 22:59 – Updated: 2026-04-06 17:32

Summary

Ella Core Panics Upon NGAP handover failure

Details

Summary

Ella Core panics when processing a NGAP handover failure message.

Impact

If an attacker can force a gNodeB to send NGAP handover failure messages to Ella Core, the process will crash, thereby disrupting service for all connected subscribers.

Fix

Improve guards in NGAP handover handlers.

Severity

5.8 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.7.0"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/ellanetworks/core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-34761"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-01T22:59:12Z",
    "nvd_published_at": "2026-04-02T20:16:25Z",
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nElla Core panics when processing a NGAP handover failure message.\n\n## Impact\n\nIf an attacker can force a gNodeB to send NGAP handover failure messages to Ella Core, the process will crash, thereby disrupting service for all connected subscribers.\n\n## Fix \n\nImprove guards in NGAP handover handlers.",
  "id": "GHSA-6gm8-3g4h-w82m",
  "modified": "2026-04-06T17:32:47Z",
  "published": "2026-04-01T22:59:12Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ellanetworks/core/security/advisories/GHSA-6gm8-3g4h-w82m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34761"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ellanetworks/core"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ellanetworks/core/releases/tag/v1.8.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Ella Core Panics Upon NGAP handover failure"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-34761 (GCVE-0-2026-34761)

FKIE_CVE-2026-34761

GHSA-6GM8-3G4H-W82M

Summary

Impact

Fix

Tags

Sightings

Nomenclature