VULNERABILITY INTELLIGENCE
CVE-2026-62963
EPSS probability0.52%
CISA KEVNot currently listed
Published2026-07-16
Last modified2026-10-24
Description
Centrifugo is an open-source scalable real-time messaging server. Prior to 6.8.4, Centrifugo unidirectional WebSocket transport with uni_websocket.compression enabled enforced uni_websocket.message_size_limit against compressed wire-frame length in internal/websocket/conn.go advanceFrame, but ReadMessage used io.ReadAll after decompression without an output cap, allowing unauthenticated requests to /connection/uni_websocket to trigger large memory and CPU consumption. This issue is fixed in version 6.8.4.
Weakness classification
- security-advisories@github.com: CWE-409