{"id":"DEBIAN-CVE-2026-83602","details":"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.","modified":"2026-09-23T05:01:27.478619620Z","published":"2026-09-22T17:17:26.393Z","upstream":["CVE-2026-83602"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-83602"}],"affected":[{"package":{"name":"netdata","ecosystem":"Debian:12","purl":"pkg:deb/debian/netdata?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.37.1-2","1.38.0-1","1.38.1-1","1.39.0-1","1.39.1-1","1.39.1-2","1.40.0-1","1.40.0-2","1.40.1-1","1.41.0-1","1.42.0-1","1.42.1-1","1.42.2-1","1.42.3-1","1.42.4-1","1.43.0-1","1.43.1-1","1.43.2-1","1.44.3-1","1.44.3-2","1.46.3-1","1.46.3-2","1.47.0-1","1.47.1-1","1.47.2-1","1.47.5-1","2.0.3+dfsg-1","2.0.3+dfsg-2","2.0.3+dfsg-3","2.0.3+dfsg-4","2.0.3+dfsg-5"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-83602.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L"}]}