CVE-2026-63760

SurrealDB before 3.1.0 Denial of Service via JSON Parser

Published Jul 20, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-q729-696q-g9pq SurrealDB has Denial of Service in JSON parser due to nested objects
History
Type Values Removed Values Added
CPEs cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Surrealdb
Surrealdb surrealdb
Vendors & Products Surrealdb
Surrealdb surrealdb
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title SurrealDB before 3.1.0 Denial of Service via JSON Parser
Weaknesses CWE-674
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jul 28, 2026, 1:05 AM
Reserved
Jul 18, 2026, 12:30 PM
Status
Analyzed
Published
Jul 20, 2026, 12:19 PM
Modified
Jul 22, 2026, 3:08 PM