Denial of Service Vulnerability in SurrealDB by SurrealDB Inc.
CVE-2026-63760

8.7HIGH

Key Information:

Vendor

Surrealdb

Status
Surrealdb
Vendor
CVE Published:
20 July 2026

What is CVE-2026-63760?

SurrealDB prior to version 3.1.0 contains a vulnerability that allows unauthorized users to exploit the value and JSON parser. By sending deeply nested JSON payloads to the /rpc WebSocket endpoint, attackers can bypass configured recursion depth limits, leading to excessive memory consumption and potentially crashing the server. This vulnerability poses a significant risk to server stability and service availability.

Affected Version(s)

surrealdb 0 < 3.1.0

surrealdb 3.1.0

References

https://github.com/surrealdb/surrealdb/security/advisorie...
vendor-advisory
https://www.vulncheck.com/advisories/surrealdb-before-den...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

DarkaMaul
.