CVE-2026-83621

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Source

https://cve.org/CVERecord?id=CVE-2026-83621

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-83621.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-83621

Aliases

GHSA-ffg5-889g-f5q8

Downstream

Published

2026-09-21T16:08:23Z

Modified

2026-10-28T02:30:25Z

Severity

8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVSS Calculator

Summary

ntopng: Missing Authorization Check in REST API Allows Non-Admin Users to Tamper Threat Intelligence Blacklist URLs

Details

ntopng is a web-based network traffic monitoring application. Prior to 6.7.260717, POST /lua/rest/v2/edit/system/edit_blacklist.lua in scripts/lua/rest/v2/edit/system/edit_blacklist.lua lacks an administrator check and calls lists_utils.editList for any authenticated user. The list_name, list_enabled, url, and list_update parameters allow a non-admin user to redirect threat-intelligence downloads to attacker-controlled content, disable blocklists, or prevent scheduled updates. The changes are persisted through Redis and reloaded without a lower-level authorization guard, undermining the integrity and availability of ntopng's threat-intelligence monitoring. This issue is fixed in version 6.7.260717.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/83xxx/CVE-2026-83621.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "6.7.260717"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                }
            ]
        },
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "6.7.260717"
                        },
                        {
                            "fixed": "6.7.260717"
                        }
                    ],
                    "source": "DESCRIPTION"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/ntop/ntopng

Affected ranges

Type

GIT

Repo

https://github.com/ntop/ntopng

Events

Introduced

Fixed

1d0627d802c59130c82478a4eb7f14014064eae5

Fixed

669589fe208fc932fe40a840e0de8e4d9df6023f

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "fixed": "1d0627d802c59130c82478a4eb7f14014064eae5"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "669589fe208fc932fe40a840e0de8e4d9df6023f"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

2.*

2.4

3.*

3.0

6.*

6.6

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-83621.json"