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TI-2026-57702 Aliases CVE-2026-83602

Netdata: Unauthenticated remote PUT to /api/v3/settings bypasses IP allowlist controls via HTTP_ACL_NOCHECK

Priority HIGH 68CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

Netdata is an open source observability tool. From 2.0.0 until 2.11.0, Netdata registers /api/v3/settings in src/web/api/v3/web_api_v3.c with HTTP_ACL_NOCHECK and HTTP_ACCESS_ANONYMOUS_DATA, causing unauthenticated PUT requests handled by src/web/api/v3/api_v3_settings.c to bypass operator-configured allow dashboard from IP restrictions. A network-reachable caller can persist attacker-controlled JSON in {varlib}/settings/default.json, manipulate its version counter, and use repeated near-20 MiB writes to consume disk space, although the file does not control collection or security policy. This vulnerability is fixed in 2.11.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00357 29th percentileScored 2026-11-07
Fix Fixed netdata (netdata): 2.11.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
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
netdatanetdata2.0.0 to before 2.11.02.11.0Patch availableCNA
  • netdata Vendornetdata Affected 2.0.0 to before 2.11.0 Fixed in 2.11.0 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 2.11.0

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-2026-83602

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-2026-57701 Netdata: Streaming protocol dimension slot has no upper-bound guard, allowing integer overflow and out-of-bounds write CVSS 3.1MEDIUM 6.5
  • TI-2026-57700 Netdata: Streaming protocol chart slot guard off-by-one allows ~16 GiB allocation request, crashing parent agent 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