Vulnerability-Lookup

ubuntu-cve-2026-84989

Vulnerability from osv_ubuntu

Published

2026-09-04 00:00

Modified

2026-09-04 00:00

Summary

Details

ntopng is a web-based network traffic monitoring application. In versions 6.7.0 through 6.7.260717, two REST v2 endpoints that manage ntopng's tag/badge feature — POST /lua/rest/v2/delete/tag/tag.lua and POST /lua/rest/v2/edit/tag/tag.lua — perform no authorization check at all. Any authenticated user, including a non-administrator ("unprivileged") account, can delete or rename any tag in the system, including tags created by an administrator. Version 6.7.260718 contains a fix.

Severity

7.1 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-84989	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-84989	REPORT
	https://github.com/ntop/ntopng/commit/0e41f24b367…	REPORT
	https://github.com/ntop/ntopng/security/advisorie…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ntopng",
            "binary_version": "2.2+dfsg1-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "ntopng-data",
            "binary_version": "2.2+dfsg1-1ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "ntopng",
        "purl": "pkg:deb/ubuntu/ntopng@2.2+dfsg1-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.1+dfsg1-2ubuntu1",
        "2.0+dfsg1-1",
        "2.2+dfsg1-1",
        "2.2+dfsg1-1build1",
        "2.2+dfsg1-1ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ntopng",
            "binary_version": "3.2+dfsg1-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "ntopng-data",
            "binary_version": "3.2+dfsg1-1ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "ntopng",
        "purl": "pkg:deb/ubuntu/ntopng@3.2+dfsg1-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4+dfsg1-3",
        "2.4+dfsg1-4",
        "3.2+dfsg1-1",
        "3.2+dfsg1-1ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ntopng",
            "binary_version": "3.8+dfsg1-2.1build3"
          },
          {
            "binary_name": "ntopng-data",
            "binary_version": "3.8+dfsg1-2.1build3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "ntopng",
        "purl": "pkg:deb/ubuntu/ntopng@3.8+dfsg1-2.1build3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.8+dfsg1-2.1build3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ntopng",
            "binary_version": "5.2.1+dfsg1-1"
          },
          {
            "binary_name": "ntopng-data",
            "binary_version": "5.2.1+dfsg1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "ntopng",
        "purl": "pkg:deb/ubuntu/ntopng@5.2.1+dfsg1-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.2.1+dfsg1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ntopng",
            "binary_version": "5.2.1+dfsg1-1ubuntu4"
          },
          {
            "binary_name": "ntopng-data",
            "binary_version": "5.2.1+dfsg1-1ubuntu4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "ntopng",
        "purl": "pkg:deb/ubuntu/ntopng@5.2.1+dfsg1-1ubuntu4?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.2.1+dfsg1-1",
        "5.2.1+dfsg1-1ubuntu1",
        "5.2.1+dfsg1-1ubuntu3",
        "5.2.1+dfsg1-1ubuntu4"
      ]
    }
  ],
  "aliases": [],
  "details": "ntopng is a web-based network traffic monitoring application. In versions 6.7.0 through 6.7.260717, two REST v2 endpoints that manage ntopng\u0027s tag/badge feature \u2014 `POST /lua/rest/v2/delete/tag/tag.lua` and `POST /lua/rest/v2/edit/tag/tag.lua` \u2014 perform no authorization check at all. Any authenticated user, including a non-administrator (\"unprivileged\") account, can delete or rename any tag in the system, including tags created by an administrator. Version 6.7.260718 contains a fix.",
  "id": "UBUNTU-CVE-2026-84989",
  "modified": "2026-09-04T00:00:00Z",
  "published": "2026-09-04T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-84989"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-84989"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ntop/ntopng/commit/0e41f24b367fb9caf750459da67827326e3289e8"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ntop/ntopng/security/advisories/GHSA-43p9-5758-wwq8"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-84989"
  ]
}

CVE-2026-84989 (GCVE-0-2026-84989)

Vulnerability from cvelistv5 – Published: 2026-09-03 14:47 – Updated: 2026-09-03 14:55

Title

ntopng's Missing Authorization in REST API Allows Non-Admin Users to Delete and Rename Arbitrary Tags

Summary

ntopng is a web-based network traffic monitoring application. In versions 6.7.0 through 6.7.260717, two REST v2 endpoints that manage ntopng's tag/badge feature — `POST /lua/rest/v2/delete/tag/tag.lua` and `POST /lua/rest/v2/edit/tag/tag.lua` — perform no authorization check at all. Any authenticated user, including a non-administrator ("unprivileged") account, can delete or rename any tag in the system, including tags created by an administrator. Version 6.7.260718 contains a fix.

Severity

7.1 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-03 14:54 UTC

CWE

CWE-862 - Missing Authorization

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/ntop/ntopng/security/advisorie…	x_refsource_CONFIRM
https://github.com/ntop/ntopng/commit/0e41f24b367…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ntop	ntopng	Affected: >= 6.7.0, < 6.7.260718

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-84989",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-03T14:54:08.872588Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-03T14:55:46.607Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/ntop/ntopng/security/advisories/GHSA-43p9-5758-wwq8"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ntopng",
          "vendor": "ntop",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 6.7.0, \u003c 6.7.260718"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "ntopng is a web-based network traffic monitoring application. In versions 6.7.0 through 6.7.260717, two REST v2 endpoints that manage ntopng\u0027s tag/badge feature \u2014 `POST /lua/rest/v2/delete/tag/tag.lua` and `POST /lua/rest/v2/edit/tag/tag.lua` \u2014 perform no authorization check at all. Any authenticated user, including a non-administrator (\"unprivileged\") account, can delete or rename any tag in the system, including tags created by an administrator. Version 6.7.260718 contains a fix."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862: Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-03T14:47:18.332Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/ntop/ntopng/security/advisories/GHSA-43p9-5758-wwq8",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/ntop/ntopng/security/advisories/GHSA-43p9-5758-wwq8"
        },
        {
          "name": "https://github.com/ntop/ntopng/commit/0e41f24b367fb9caf750459da67827326e3289e8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ntop/ntopng/commit/0e41f24b367fb9caf750459da67827326e3289e8"
        }
      ],
      "source": {
        "advisory": "GHSA-43p9-5758-wwq8",
        "discovery": "UNKNOWN"
      },
      "title": "ntopng\u0027s Missing Authorization in REST API Allows Non-Admin Users to Delete and Rename Arbitrary Tags"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-84989",
    "datePublished": "2026-09-03T14:47:01.859Z",
    "dateReserved": "2026-09-02T18:12:13.534Z",
    "dateUpdated": "2026-09-03T14:55:46.607Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.