{"id":"CVE-2026-83602","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-83602","generatedAt":"2026-10-28T01:02:09.350Z","title":"From 2.0.0 until 2.11.0, Netdata registers /api/v3/settings in src/web/api/v3/web_api_v3.c with HTTP_ACL_NOCHECK and HTTP_ACCESS_ANONYMOUS_DATA, causing unauthenticated PUT requests handled by src/web/api/v3/api_v3_settings.c to bypass…","description":"Netdata is an open source observability tool. From 2.0.0 until 2.11.0, Netdata registers /api/v3/settings in src/web/api/v3/web_api_v3.c with HTTP_ACL_NOCHECK and HTTP_ACCESS_ANONYMOUS_DATA, causing unauthenticated PUT requests handled by src/web/api/v3/api_v3_settings.c to bypass operator-configured allow dashboard from IP restrictions. A network-reachable caller can persist attacker-controlled JSON in {varlib}/settings/default.json, manipulate its version counter, and use repeated near-20 MiB writes to consume disk space, although the file does not control collection or security policy. This vulnerability is fixed in 2.11.0.","published":"2026-09-22T17:17:26.000Z","lastModified":"2026-09-28T20:17:11.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L"},"cwe":["CWE-284"],"affected":[],"epss":{"score":0.00357,"percentile":0.29154,"date":"2026-10-26","history":[{"date":"2026-09-23","score":0.0051,"percentile":0.42556}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.36%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-22T17:17:26.000Z","detail":{"score":"6.5","severity":"MEDIUM","publishedAt":"2026-09-22T17:17:26.393Z"},"summary":"New CVE, medium severity (CVSS 6.5)."}],"references":[{"url":"https://github.com/netdata/netdata/commit/0124f50bbcf36c23e798e2b76f021f5032ec93d4","source":"security-advisories@github.com"},{"url":"https://github.com/netdata/netdata/pull/22896","source":"security-advisories@github.com"},{"url":"https://github.com/netdata/netdata/releases/tag/v2.11.0","source":"security-advisories@github.com"},{"url":"https://github.com/netdata/netdata/security/advisories/GHSA-8hjg-8hcf-fmwp","source":"security-advisories@github.com"},{"url":"https://github.com/netdata/netdata/security/advisories/GHSA-8hjg-8hcf-fmwp","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-83602","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}