FKIE_CVE-2026-83600

Vulnerability from fkie_nvd - Published: 2026-09-22 17:17 - Updated: 2026-09-23 18:28
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
security-advisories@github.comhttps://github.com/netdata/netdata/commit/034a774f689ac01488fc261ca729ce0875819b1b
security-advisories@github.comhttps://github.com/netdata/netdata/pull/22598
security-advisories@github.comhttps://github.com/netdata/netdata/releases/tag/v2.10.4
security-advisories@github.comhttps://github.com/netdata/netdata/security/advisories/GHSA-3mxw-fv2x-rhc6
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/netdata/netdata/security/advisories/GHSA-3mxw-fv2x-rhc6
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "netdata",
          "vendor": "netdata",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.10.4"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "id": "CVE-2026-83600",
  "lastModified": "2026-09-23T18:28:25.093",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-83600",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-22T18:22:18.744373Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-22T17:17:26.103",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/netdata/netdata/commit/034a774f689ac01488fc261ca729ce0875819b1b"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/netdata/netdata/pull/22598"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/netdata/netdata/releases/tag/v2.10.4"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/netdata/netdata/security/advisories/GHSA-3mxw-fv2x-rhc6"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/netdata/netdata/security/advisories/GHSA-3mxw-fv2x-rhc6"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-193"
        },
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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