Description
SurrealDB versions before 3.1.0 fail to apply the SURREAL_WEBSOCKET_MAX_MESSAGE_SIZE limit to anonymous /sql WebSocket connections, allowing attackers to buffer unbounded frames in the per-connection read buffer. Attackers can stream WebSocket frames larger than the configured limit across multiple concurrent connections to consume excessive memory and degrade /sql availability.
CVSS 5.3EPSS 0.27799999999999997%Risk 0.54
View source- Published
- 2026-07-20 12:19:44
- Affected versions
- <3.1.0
- Type
- Critical software
- Last modified
- 2026-07-22 15:41:31
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L