CVE-2026-63760CWE-674

SurrealDB before 3.1.0 Denial of Service via JSON Parser

High · published July 20, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
43.0
In the wild
Unconfirmed
What it is

SurrealDB before 3.1.0 fails to enforce the configured recursion depth limit in the value and JSON parser when processing nested braces, brackets, or parentheses. Unauthenticated attackers can send deeply nested JSON payloads to the WebSocket /rpc endpoint to exhaust server memory and crash the process.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00515 · 43.0th percentile
Weakness
CWE-674 · Uncontrolled Recursion
Published
2026-07-20T12:04Z
EPSS history
Timeline
  • 20 JUL 12:04Z
    SurrealDB before 3.1.0 Denial of Service via JSON Parser
    cvelistv5