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TI-2026-57700 Aliases CVE-2026-83600

Netdata: Streaming protocol chart slot guard off-by-one allows ~16 GiB allocation request, crashing parent agent

Priority MEDIUM 62CWE-193Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-193 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00548 46th percentileScored 2026-11-07
Fix Fixed netdata (netdata): 2.10.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
netdatanetdatabefore 2.10.42.10.4Patch availableCNA
  • netdata Vendornetdata Affected before 2.10.4 Fixed in 2.10.4 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:netdata:netdata:*:*:*:*:*:*:*:*——netdata
  • cpe:2.3:a:netdata:netdata:*:*:*:*:*:*:*:* Versions — — ·netdata

Remediation

  • Fix · CNA netdata (netdata) Fixed in 2.10.4

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-83600

References

Other 4

  • TI-2023-08744 Netdata vulnerable to command injection CVSS 3.1CRITICAL 9.8
  • TI-2024-21114 ndsudo: local privilege escalation via untrusted search path CVSS 3.1HIGH 8.8
  • TI-2023-08745 Netdata is vulnerable to improper authentication CVSS 3.1CRITICAL 9.1
  • TI-2026-57702 Netdata: Unauthenticated remote PUT to /api/v3/settings bypasses IP allowlist controls via HTTP_ACL_NOCHECK CVSS 3.1MEDIUM 6.5
  • TI-2026-57701 Netdata: Streaming protocol dimension slot has no upper-bound guard, allowing integer overflow and out-of-bounds write CVSS 3.1MEDIUM 6.5
  • TI-2026-57699 Netdata: WebSocket Decompression Bomb CVSS 3.1HIGH 7.5
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences