{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-83602",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-08-31T20:36:25.743Z",
        "datePublished": "2026-09-22T16:56:56.878Z",
        "dateUpdated": "2026-09-22T16:56:56.878Z"
    },
    "containers": {
        "cna": {
            "title": "Netdata: Unauthenticated remote PUT to /api/v3/settings bypasses IP allowlist controls via HTTP_ACL_NOCHECK",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-284",
                            "lang": "en",
                            "description": "CWE-284: Improper Access Control",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "LOW",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/netdata/netdata/security/advisories/GHSA-8hjg-8hcf-fmwp",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/netdata/netdata/security/advisories/GHSA-8hjg-8hcf-fmwp"
                },
                {
                    "name": "https://github.com/netdata/netdata/pull/22896",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/netdata/netdata/pull/22896"
                },
                {
                    "name": "https://github.com/netdata/netdata/commit/0124f50bbcf36c23e798e2b76f021f5032ec93d4",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/netdata/netdata/commit/0124f50bbcf36c23e798e2b76f021f5032ec93d4"
                },
                {
                    "name": "https://github.com/netdata/netdata/releases/tag/v2.11.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/netdata/netdata/releases/tag/v2.11.0"
                }
            ],
            "affected": [
                {
                    "vendor": "netdata",
                    "product": "netdata",
                    "versions": [
                        {
                            "version": ">= 2.0.0, < 2.11.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-22T16:56:56.878Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "source": {
                "advisory": "GHSA-8hjg-8hcf-fmwp",
                "discovery": "UNKNOWN"
            }
        }
    }
}