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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-63750

SurrealDB before 3.1.0 Memory Amplification via /sql WebSocket

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Status
Published
Published
Updated
Assigning organization
VulnCheck

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

surrealdb surrealdb

Default version status: unaffected

  • 0 to < 3.1.0affected
  • 3.1.0unaffected
pkg:cargo/surrealdb

References