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CVE-2026-83601

Netdata: Streaming protocol dimension slot has no upper-bound guard, allowing integer overflow and out-of-bounds write PUBLISHED

Description (CNA)

Netdata is an open source observability tool. Prior to 2.10.4, an authenticated child agent can send an oversized DIMENSION SLOT value that str2ull_encoded passes to pluginsd_rrddim_put_to_slot in src/plugins.d/pluginsd_internals.h without an upper bound. prd_array_create in src/database/rrdset-pluginsd-array.h can then wrap the size_t allocation calculation while retaining the original large array size, causing the subsequent initialization loop to write beyond the undersized heap allocation and crash the parent agent. This issue is fixed in version 2.10.4 and nightly build 2.10.0-782-nightly.

Affected (CNA)

Vendor / productVersions
netdata / netdataaffected < 2.10.4

CWE

CWE-190, CWE-787

References

ADP enrichment

CISA-ADP

No English description supplied.