CVE-2026-83600

Description

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.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: MEDIUM
CVSS score: 6.5 / 10
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Effective score: 6.5 / 10 MEDIUM source: CNA overview
CWE(s): CWE-193, CWE-400
Reserved: 2026-08-31
Published: 2026-09-22 17:05 UTC
Last updated: 2026-09-22 18:23 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/83xxx/CVE-2026-83600.json

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-22 17:17:26 UTC
NVD last modified: 2026-09-22 19:16:53 UTC
NVD CVSS v3.1: 6.5 / 10 MEDIUM source: security-advisories@github.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore: 2.8 / 10
Impact subscore: 3.6 / 10

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-84566
Assigner: GitHub_M
Published: Sep 22, 2026, 5:05:15 PM
Updated: Sep 22, 2026, 6:23:00 PM
EUVD base score (CVSS 3.1): 6.5 / 10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EUVD-reported EPSS: 0.0000
Vendors: netdata
Products: netdata (< 2.10.4)

ENISA description: 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.

EUVD references (4)

Affected products (1)

Vendor	Product	Versions	Platforms
netdata	netdata	`< 2.10.4` (affected)	—

Vendor references (4)

References embedded in the original CVE record by the assigning CNA.

https://github.com/netdata/netdata/security/advisories/GHSA-3mxw-fv2x-rhc6 x_refsource_CONFIRM
https://github.com/netdata/netdata/pull/22598 x_refsource_MISC
https://github.com/netdata/netdata/commit/034a774f689ac01488fc261ca729ce0875819b1b x_refsource_MISC
https://github.com/netdata/netdata/releases/tag/v2.10.4 x_refsource_MISC

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (5)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/netdata/netdata/commit/034a774f689ac01488fc261ca729ce0875819b1b security-advisories@github.com
https://github.com/netdata/netdata/pull/22598 security-advisories@github.com
https://github.com/netdata/netdata/releases/tag/v2.10.4 security-advisories@github.com
https://github.com/netdata/netdata/security/advisories/GHSA-3mxw-fv2x-rhc6 security-advisories@github.com
https://github.com/netdata/netdata/security/advisories/GHSA-3mxw-fv2x-rhc6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Remediations (10)

Microsoft and Adobe Patch Tuesday, August 2026 Security Update Review

web:blog.qualys.com

The August 2026 Microsoft Patch Tuesday release delivers security fixes for vulnerabilities affecting a wide range of Microsoft products and services.

2026-09-23 15:43 UTC
Microsoft Patch Tuesday for September 2026 — Snort rules and prominent ...

web:blog.talosintelligence.com

Microsoft has released its monthly security update for September 2026 , which includes 973 vulnerabilities affecting a range of products, including 113 that Microsoft marked as "critical." Microsoft notes that 2 of the vulnerabilities disclosed this month have been exploited in the wild: CVE - 2026 -81963 affects Windows Update Stack. CVE - 2026 -81963 is a elevation of privilege vulnerability ...

2026-09-23 15:43 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-23 15:43 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Security Update Guide - Microsoft Security Response Center

2026-09-23 15:43 UTC
Cisco Advance Notification for Publication of September 16, 2026 ...

web:sec.cloudapps.cisco.com

On September 16, 2026 , the Cisco Product Security Incident Response Team (PSIRT) published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the ...

2026-09-23 15:43 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-23 15:43 UTC
Critical Patches Issued for Microsoft Products, August 11, 2026

web:www.cisecurity.org

<p>Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for remote code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged-on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or ...

2026-09-23 15:43 UTC
August's Patch Tuesday is a monster: 751 fixes, with an exploited ...

web:www.computerworld.com

August's Patch Tuesday is a big one: 751 fixes, an exploited WinSock flaw and plenty of critical Windows, Office and Exchange issues.

2026-09-23 15:43 UTC
CVE-2026-83600: netdata: Netdata is an open source ... - Rapid7

web:www.rapid7.com

CVE-2026-83600 : netdata: Netdata is an open source observability tool. View severity, references, and remediation details from Rapid7.

2026-09-23 15:43 UTC
Patch Tuesday September 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-09-23 15:43 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-83600.json.

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                "id": "CVE-2026-83600",
                "options": [
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                  },
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                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-22T18:22:18.744373Z",
                "version": "2.0.3"
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