Vulnerability-Lookup

GHSA-55Q8-2GWX-29PC

Vulnerability from github – Published: 2026-03-26 22:15 – Updated: 2026-03-27 21:51

Summary

Ella Core Panics during NAS Authentication Response/Failure with missing IEs

Details

Summary

Ella Core panics when processing Authentication Response and Authentication Failure NAS message missing IEs.

Impact

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.

Fix

Added IE presence verification to NAS message handling.

Severity ?

6.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/ellanetworks/core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-33907"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-26T22:15:54Z",
    "nvd_published_at": "2026-03-27T21:17:27Z",
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nElla Core panics when processing Authentication Response and Authentication Failure NAS message missing IEs. \n\n## Impact\n\nAn 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.\n\n## Fix\n\nAdded IE presence verification to NAS message handling.",
  "id": "GHSA-55q8-2gwx-29pc",
  "modified": "2026-03-27T21:51:52Z",
  "published": "2026-03-26T22:15:54Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ellanetworks/core/security/advisories/GHSA-55q8-2gwx-29pc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33907"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ellanetworks/core/commit/52962660e3bd3e23c7e96b0da270ac1e0e705273"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ellanetworks/core"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ellanetworks/core/releases/tag/v1.7.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Ella Core Panics during NAS Authentication Response/Failure with missing IEs"
}

CVE-2026-33907 (GCVE-0-2026-33907)

Vulnerability from cvelistv5 – Published: 2026-03-27 20:58 – Updated: 2026-03-30 18:53

Title

Ella Core Panics during NAS Authentication Response/Failure with missing IEs

Summary

Ella Core is a 5G core designed for private networks. Versions prior to 1.7.0 panic when processing Authentication Response and Authentication Failure NAS message missing IEs. 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. Version 1.7.0 added IE presence verification to NAS message handling.

Severity ?

6.5 (Medium)


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

CWE

CWE-476 - NULL Pointer Dereference

Assigner

GitHub_M

References

URL

Tags

	https://github.com/ellanetworks/core/security/adv…	x_refsource_CONFIRM
	https://github.com/ellanetworks/core/commit/52962…	x_refsource_MISC
	https://github.com/ellanetworks/core/releases/tag…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	ellanetworks	core	Affected: < 1.7.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-33907",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-30T18:53:05.536896Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-30T18:53:12.138Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "core",
          "vendor": "ellanetworks",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.7.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Ella Core is a 5G core designed for private networks. Versions prior to 1.7.0 panic when processing Authentication Response and Authentication Failure NAS message missing IEs. 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. Version 1.7.0 added IE presence verification to NAS message handling."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "CWE-476: NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-27T20:58:06.768Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/ellanetworks/core/security/advisories/GHSA-55q8-2gwx-29pc",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/ellanetworks/core/security/advisories/GHSA-55q8-2gwx-29pc"
        },
        {
          "name": "https://github.com/ellanetworks/core/commit/52962660e3bd3e23c7e96b0da270ac1e0e705273",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ellanetworks/core/commit/52962660e3bd3e23c7e96b0da270ac1e0e705273"
        },
        {
          "name": "https://github.com/ellanetworks/core/releases/tag/v1.7.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ellanetworks/core/releases/tag/v1.7.0"
        }
      ],
      "source": {
        "advisory": "GHSA-55q8-2gwx-29pc",
        "discovery": "UNKNOWN"
      },
      "title": "Ella Core Panics during NAS Authentication Response/Failure with missing IEs"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-33907",
    "datePublished": "2026-03-27T20:58:06.768Z",
    "dateReserved": "2026-03-24T15:41:47.491Z",
    "dateUpdated": "2026-03-30T18:53:12.138Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-55Q8-2GWX-29PC

Summary

Impact

Fix

CVE-2026-33907 (GCVE-0-2026-33907)

Tags

Sightings

Nomenclature