Off-by-one Error Affecting netdata package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-NETDATA-20047244
- published23 Sept 2026
- disclosed22 Sept 2026
Introduced: 22 Sep 2026
NewCVE-2026-83600 (opens in a new tab)How to fix?
There is no fixed version for Debian:12 netdata.
NVD Description
Note: Versions mentioned in the description apply only to the upstream netdata package and not the netdata package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
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
- https://security-tracker.debian.org/tracker/CVE-2026-83600
- https://github.com/netdata/netdata/commit/034a774f689ac01488fc261ca729ce0875819b1b
- https://github.com/netdata/netdata/pull/22598
- https://github.com/netdata/netdata/releases/tag/v2.10.4
- https://github.com/netdata/netdata/security/advisories/GHSA-3mxw-fv2x-rhc6