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CVE-2026-63750

SurrealDB before 3.1.0 Memory Amplification via /sql WebSocket PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
surrealdb / surrealdbaffected 0 before 3.1.0; unaffected 3.1.0

CWE

CWE-770

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.