EUVD-2026-84562

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/webapiv3.c with HTTPACLNOCHECK and HTTPACCESSANONYMOUSDATA, causing unauthenticated PUT requests handled by src/web/api/v3/apiv3settings.c to bypass operator-configured allo...

CVE-2026-83599 Netdata: WebSocket Decompression Bomb

Netdata is an open source observability tool. Prior to 2.11.0, Netdata's unauthenticated WebSocket server negotiates permessage-deflate before authentication, and src/web/websocket/websocket-compression.c allows websocketclientdecompressmessage to grow decompressed output toward...

CVE-2026-83599

The open source observability tool Netdata contains a vulnerability in its unauthenticated WebSocket server prior to version 2.11.0 . The issue resides in src/web/websocket/websocket-compression.c, where the websocket_client_decompress_message() function allows decompressed output to grow toward ...

CVE-2026-83599 Netdata: WebSocket Decompression Bomb

Netdata is an open source observability tool. Prior to 2.11.0, Netdata's unauthenticated WebSocket server negotiates permessage-deflate before authentication, and src/web/websocket/websocket-compression.c allows websocketclientdecompressmessage to grow decompressed output toward...

CVE-2026-83599 Netdata: WebSocket Decompression Bomb

Netdata is an open source observability tool. Prior to 2.11.0, Netdata's unauthenticated WebSocket server negotiates permessage-deflate before authentication, and src/web/websocket/websocket-compression.c allows websocketclientdecompressmessage to grow decompressed output toward...

CVE-2026-83599

Netdata is an open source observability tool. Prior to 2.11.0, Netdata's unauthenticated WebSocket server negotiates permessage-deflate before authentication, and src/web/websocket/websocket-compression.c allows websocketclientdecompressmessage to grow decompressed output toward...

EUVD-2026-84561

Netdata is an open source observability tool. Prior to 2.11.0, Netdata's unauthenticated WebSocket server negotiates permessage-deflate before authentication, and src/web/websocket/websocket-compression.c allows websocketclientdecompressmessage to grow decompressed output toward...

PT-2026-96847

Name of the Vulnerable Software and Affected Versions Netdata versions prior to 2.10.4 Description An authenticated child agent can send an oversized DIMENSION SLOT value that is processed by the str2ull encoded function and passed to pluginsd rrddim put to slot in src/plugins.d/pluginsd...

PT-2026-96845

Name of the Vulnerable Software and Affected Versions Netdata versions prior to 2.11.0 Description The unauthenticated WebSocket server negotiates permessage-deflate before authentication. In the file src/web/websocket/websocket-compression.c, the function websocket client decompress message allo...

PT-2026-96849

Name of the Vulnerable Software and Affected Versions Netdata versions prior to 2.10.4 Description The setuid-root ndsudo helper command fail2ban-client-status-socket in src/collectors/utils/ndsudo.c accepts a caller-controlled --socket path from the low-privileged netdata service account. An...

CVE-2026-83598: Improper Privilege Management

Netdata is an open source observability tool. From rom 2.0.0 until 2.10.4, during Netdata Windows Agent MSI repair, powershell.exe runs as SYSTEM without -NoProfile and loads %USERPROFILE%\Documents\WindowsPowerShell\Microsoft.PowerShellprofile.ps1 from the low-privileged user who initiated repai...

PT-2026-96843

Name of the Vulnerable Software and Affected Versions Netdata Windows Agent versions 2.0.0 through 2.10.3 Description The MSI repair process launches powershell.exe and wevtutil.exe as elevated interactive processes within the user's desktop session. A low-privileged local user can trigger this...

CVE-2026-83601: Integer Overflow or Wraparound

Netdata is an open source observability tool. Prior to 2.10.4, an authenticated child agent can send an oversized DIMENSION SLOT value that str2ullencoded passes to pluginsdrrddimputtoslot in src/plugins.d/pluginsdinternals.h without an upper bound. prdarraycreate in...

PT-2026-96846

Name of the Vulnerable Software and Affected Versions Netdata versions prior to 2.10.4 Description An authenticated child agent can send an oversized CHART SLOT value that is processed by the str2ull encoded function and passed to pluginsd rrdset cache put to slot in src/plugins.d/pluginsd...

PT-2026-96844

Name of the Vulnerable Software and Affected Versions Netdata versions 2.0.0 through 2.10.3 Description During the MSI repair process of the Netdata Windows Agent, powershell.exe is executed with SYSTEM privileges without the -NoProfile flag. This causes the system to load the Microsoft.PowerShel...

CVE-2026-83602: Improper Access Control

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/webapiv3.c with HTTPACLNOCHECK and HTTPACCESSANONYMOUSDATA, causing unauthenticated PUT requests handled by src/web/api/v3/apiv3settings.c to bypass operator-configured allo...

CVE-2026-83599: Improper Handling of Highly Compressed Data (Data Amplification)

Netdata is an open source observability tool. Prior to 2.11.0, Netdata's unauthenticated WebSocket server negotiates permessage-deflate before authentication, and src/web/websocket/websocket-compression.c allows websocketclientdecompressmessage to grow decompressed output toward...

CVE-2026-83597: Improper Privilege Management

Netdata is an open source observability tool. From version 2.0.0 until 2.10.4, Netdata Windows Agent MSI repair launches powershell.exe and wevtutil.exe as elevated interactive processes in the initiating user's desktop session. A low-privileged local user who triggers repair can interact with or...

CVE-2026-83603: External Control of File Name or Path

Netdata is an open source observability tool. Prior to 2.10.4, the setuid-root ndsudo helper command fail2ban-client-status-socket in src/collectors/utils/ndsudo.c accepts a caller-controlled --socketpath from the low-privileged netdata service account. The account can direct root fail2ban-client...

CVE-2026-83600: Off-by-one Error

Netdata is an open source observability tool. Prior to 2.10.4, an authenticated child agent can send an oversized CHART SLOT value that str2ullencoded passes to pluginsdrrdsetcacheputtoslot in src/plugins.d/pluginsdinternals.h. The accepted slot drives reallocz to request an approximately 16 GiB...