CVE-2026-83600
mediumNetdata is an open source observability tool.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- 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