CVE-2026-62963

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/centrifugal/centrifugo/commit/46d40e4ac3a5446c9745f8b219197166ae12a6e5
https://github.com/centrifugal/centrifugo/pull/1162
https://github.com/centrifugal/centrifugo/releases/tag/v6.8.4
https://github.com/centrifugal/centrifugo/security/advisories/GHSA-q6mr-3g59-5m8x

Configurations

No configuration.

History

16 Jul 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-16 20:16

Updated : 2026-07-17 18:44

NVD link : CVE-2026-62963

Mitre link : CVE-2026-62963

CVE.ORG link : CVE-2026-62963

JSON object : View

Products Affected

No product.

CWE

CWE-409

Improper Handling of Highly Compressed Data (Data Amplification)

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