← CVE Intelligence

CVE-2026-83599

Netdata: WebSocket Decompression Bomb PUBLISHED

Description (CNA)

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 websocket_client_decompress_message() to grow decompressed output toward WS_MAX_DECOMPRESSED_SIZE without enforcing a compressed-to-decompressed ratio. Small highly compressed frames can therefore cause large server-side allocations, and repeated concurrent connections can exhaust memory and terminate monitoring. This vulnerability is fixed in 2.11.0.

Affected (CNA)

Vendor / productVersions
netdata / netdataaffected < 2.11.0

CWE

CWE-409

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.