Bug 2538307 (CVE-2026-83600) - CVE-2026-83600 netdata: Netdata: Denial of Service via oversized chart slot value
Summary: CVE-2026-83600 netdata: Netdata: Denial of Service via oversized chart slot v...
Keywords:
Status: NEW
Alias: CVE-2026-83600
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2539377
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-22 17:56 UTC by OSIDB Bzimport
Modified: 2026-09-23 12:00 UTC (History)
0 users

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Description OSIDB Bzimport 2026-09-22 17:56:06 UTC 
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.
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