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UBUNTU-CVE-2026-83600

Type: advisorySource: OSV1 source record

Netdata is an open source observability tool. Prior to 2.10.4, an authenticated child agent can send an oversized CHART SLOT value that str2ull_encoded passes to pluginsd_rrdset_cache_put_to_slot in src/plugins.d/pluginsd_internals.h. The accepted slot drives reallocz to request an approximately 16 GiB chart-pointer array, and allocation failure invokes fatal and aborts the parent Netdata agent, repeatedly disabling centralized monitoring while stream access persists. This issue is fixed in version 2.10.4 and nightly build 2.10.0-782-nightly.

Announced 22 Sept 2026Source revision 1

Original source ↗

UBUNTU-CVE-2026-83600

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-2026-83600

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-2026-83600.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-2026-83600.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-2026-83600.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-2026-83600.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: #5819 · Revision 1
Added to Heist Feed: Sat, 24 Oct 2026 22:15:21 GMT
Publisher date: Tue, 22 Sep 2026 17:17:00 GMT

Read the original announcement