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CVE-2026-83600 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/netdata/netdata/security/advisories/GHSA-3mxw-fv2x-rhc6	CISA-ADP
https://github.com/netdata/netdata/commit/034a774f689ac01488fc261ca729ce0875819b1b	[email protected]
https://github.com/netdata/netdata/pull/22598	[email protected]
https://github.com/netdata/netdata/releases/tag/v2.10.4	[email protected]
https://github.com/netdata/netdata/security/advisories/GHSA-3mxw-fv2x-rhc6	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-193	Off-by-one Error	[email protected]
CWE-400	Uncontrolled Resource Consumption	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 22, 2026	CVE Modified	CISA-ADP
Sep 22, 2026	New CVE Received	[email protected]