{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-83621","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-08-31T20:36:25.744Z","datePublished":"2026-09-21T16:08:23.333Z","dateUpdated":"2026-09-21T20:45:33.312Z"},"containers":{"cna":{"title":"ntopng: Missing Authorization Check in REST API Allows Non-Admin Users to Tamper Threat Intelligence Blacklist URLs","problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"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:H","version":"3.1"}}],"references":[{"name":"https://github.com/ntop/ntopng/security/advisories/GHSA-ffg5-889g-f5q8","tags":["x_refsource_CONFIRM"],"url":"https://github.com/ntop/ntopng/security/advisories/GHSA-ffg5-889g-f5q8"},{"name":"https://github.com/ntop/ntopng/commit/1d0627d802c59130c82478a4eb7f14014064eae5","tags":["x_refsource_MISC"],"url":"https://github.com/ntop/ntopng/commit/1d0627d802c59130c82478a4eb7f14014064eae5"},{"name":"https://github.com/ntop/ntopng/commit/669589fe208fc932fe40a840e0de8e4d9df6023f","tags":["x_refsource_MISC"],"url":"https://github.com/ntop/ntopng/commit/669589fe208fc932fe40a840e0de8e4d9df6023f"}],"affected":[{"vendor":"ntop","product":"ntopng","versions":[{"version":"< 6.7.260717","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-21T16:08:23.333Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-ffg5-889g-f5q8","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-21T19:40:33.282816Z","id":"CVE-2026-83621","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-21T20:45:33.312Z"}}]}}