Unrated

UBUNTU-CVE-2026-83602

Type: advisorySource: OSV1 source record

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.

Announced 22 Sept 2026Source revision 1

Original source ↗

UBUNTU-CVE-2026-83602

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:UBUNTU-CVE-2026-83602

netdata

Source reference: /affected/0/package/name

Affected versions: 1.7.0+dfsg-1
Source reference: /affected/0/versions
1.8.0+dfsg-1
Source reference: /affected/0/versions
1.9.0+dfsg-1
Source reference: /affected/0/versions
1.9.0+dfsg-1ubuntu0.1~esm1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

netdata

Source reference: /affected/1/package/name

Affected versions: 1.16.1-2
Source reference: /affected/1/versions
1.19.0-3ubuntu1
Source reference: /affected/1/versions
1.19.0-3ubuntu1+esm1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

netdata

Source reference: /affected/2/package/name

Affected versions: 1.29.3-4
Source reference: /affected/2/versions
1.31.0-4
Source reference: /affected/2/versions
1.33.1-1ubuntu1
Source reference: /affected/2/versions
1.33.1-1ubuntu1+esm1
Source reference: /affected/2/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

netdata

Source reference: /affected/3/package/name

Affected versions: 1.42.1-1
Source reference: /affected/3/versions
1.43.1-1
Source reference: /affected/3/versions
1.43.2-1
Source reference: /affected/3/versions
1.43.2-1build1
Source reference: /affected/3/versions
1.43.2-1build2
Source reference: /affected/3/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "netdata",
      "purl": "pkg:deb/ubuntu/netdata?arch=source&distro=esm-apps%2Fbionic",
      "ecosystem": "Ubuntu:Pro:18.04:LTS"
    },
    "versions": [
      "1.7.0+dfsg-1",
      "1.8.0+dfsg-1",
      "1.9.0+dfsg-1",
      "1.9.0+dfsg-1ubuntu0.1~esm1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83602.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "netdata",
          "binary_version": "1.9.0+dfsg-1ubuntu0.1~esm1"
        },
        {
          "binary_name": "netdata-data",
          "binary_version": "1.9.0+dfsg-1ubuntu0.1~esm1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "netdata",
      "purl": "pkg:deb/ubuntu/netdata?arch=source&distro=esm-apps%2Ffocal",
      "ecosystem": "Ubuntu:Pro:20.04:LTS"
    },
    "versions": [
      "1.16.1-2",
      "1.19.0-3ubuntu1",
      "1.19.0-3ubuntu1+esm1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83602.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "netdata",
          "binary_version": "1.19.0-3ubuntu1+esm1"
        },
        {
          "binary_name": "netdata-apache2",
          "binary_version": "1.19.0-3ubuntu1+esm1"
        },
        {
          "binary_name": "netdata-core",
          "binary_version": "1.19.0-3ubuntu1+esm1"
        },
        {
          "binary_name": "netdata-plugins-bash",
          "binary_version": "1.19.0-3ubuntu1+esm1"
        },
        {
          "binary_name": "netdata-plugins-nodejs",
          "binary_version": "1.19.0-3ubuntu1+esm1"
        },
        {
          "binary_name": "netdata-plugins-python",
          "binary_version": "1.19.0-3ubuntu1+esm1"
        },
        {
          "binary_name": "netdata-web",
          "binary_version": "1.19.0-3ubuntu1+esm1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "netdata",
      "purl": "pkg:deb/ubuntu/netdata?arch=source&distro=esm-apps%2Fjammy",
      "ecosystem": "Ubuntu:Pro:22.04:LTS"
    },
    "versions": [
      "1.29.3-4",
      "1.31.0-4",
      "1.33.1-1ubuntu1",
      "1.33.1-1ubuntu1+esm1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83602.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "netdata",
          "binary_version": "1.33.1-1ubuntu1+esm1"
        },
        {
          "binary_name": "netdata-apache2",
          "binary_version": "1.33.1-1ubuntu1+esm1"
        },
        {
          "binary_name": "netdata-core",
          "binary_version": "1.33.1-1ubuntu1+esm1"
        },
        {
          "binary_name": "netdata-plugins-bash",
          "binary_version": "1.33.1-1ubuntu1+esm1"
        },
        {
          "binary_name": "netdata-plugins-nodejs",
          "binary_version": "1.33.1-1ubuntu1+esm1"
        },
        {
          "binary_name": "netdata-plugins-python",
          "binary_version": "1.33.1-1ubuntu1+esm1"
        },
        {
          "binary_name": "netdata-web",
          "binary_version": "1.33.1-1ubuntu1+esm1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "netdata",
      "purl": "pkg:deb/ubuntu/netdata?arch=source&distro=noble",
      "ecosystem": "Ubuntu:24.04:LTS"
    },
    "versions": [
      "1.42.1-1",
      "1.43.1-1",
      "1.43.2-1",
      "1.43.2-1build1",
      "1.43.2-1build2"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83602.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "netdata",
          "binary_version": "1.43.2-1build2"
        },
        {
          "binary_name": "netdata-apache2",
          "binary_version": "1.43.2-1build2"
        },
        {
          "binary_name": "netdata-core",
          "binary_version": "1.43.2-1build2"
        },
        {
          "binary_name": "netdata-plugins-bash",
          "binary_version": "1.43.2-1build2"
        },
        {
          "binary_name": "netdata-plugins-python",
          "binary_version": "1.43.2-1build2"
        },
        {
          "binary_name": "netdata-web",
          "binary_version": "1.43.2-1build2"
        }
      ]
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #5822 · Revision 1
Added to Heist Feed: Sat, 24 Oct 2026 22:15:23 GMT
Publisher date: Tue, 22 Sep 2026 17:17:00 GMT

Read the original announcement