What is GHSA-qg3v-r4m7-x5f5?

GHSA-qg3v-r4m7-x5f5 is a security advisory published by GitHub Security Advisories with Medium severity. SurrealDB versions before 3.1.0 fail to apply the SURREAL_WEBSOCKET_MAX_MESSAGE_SIZE limit to...

Which CVE IDs does GHSA-qg3v-r4m7-x5f5 cover?

GHSA-qg3v-r4m7-x5f5 covers the following CVE IDs: CVE-2026-63750. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-qg3v-r4m7-x5f5?

GHSA-qg3v-r4m7-x5f5 has a CVSS v3 base score of 5.3, published by GitHub Security Advisories.

GHSA-qg3v-r4m7-x5f5MediumCVSS 5.3

SurrealDB versions before 3.1.0 fail to apply the SURREAL_WEBSOCKET_MAX_MESSAGE_SIZE limit to...

Vendor

GitHub Security Advisories

Published

July 20, 2026

Last Modified

July 20, 2026

🔗 CVE IDs covered (1)

CVE-2026-63750 →

📋 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.

🔗 References (4)

https://github.com/surrealdb/surrealdb/security/advisories/GHSA-65rj-r9fh-jp2v
https://nvd.nist.gov/vuln/detail/CVE-2026-63750
https://www.vulncheck.com/advisories/surrealdb-before-memory-amplification-via-sql-websocket
https://github.com/advisories/GHSA-qg3v-r4m7-x5f5