CVE-2026-63759

MEDIUM 6.5

SurrealDB before 3.1.0 Denial of Service nested type annotations

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

SurrealDB before 3.1.0 fails to enforce recursion depth limits in the type/kind parser when processing nested type annotations. Authenticated attackers can send queries with deeply nested type annotations to exhaust server memory and crash the process.

CWE	CWE-674
Vendor	surrealdb
Product	surrealdb
Published	Jul 20, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

surrealdb / surrealdb

0 < 3.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/surrealdb/surrealdb/security/advisories/GHSA-q8qp-67f9-wr3f vulncheck.com: https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-nested-type-annotations

Credits

🔍 DarkaMaul