CVE-2026-63740 — MEDIUM (6.5)

Q: How severe is CVE-2026-63740?

CVE-2026-63740 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-63740?

Check the references section above for vendor advisories and patch information. Affected products include: Surrealdb Surrealdb.

Vulnerability Description

SurrealDB versions before 3.1.4 fail to properly enforce SELECT permissions on array elements (field.*) for record users, leaking denied array elements instead of hiding them. Attackers with record scope access can read array elements that element-level permissions should deny by exploiting incorrect index handling during permission filtering.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Surrealdb	Surrealdb	< 3.1.4

Related Weaknesses (CWE)

CWE-863

References

https://github.com/surrealdb/surrealdb/security/advisories/GHSA-8rw6-p7m8-63jpVendor AdvisoryMitigation
https://www.vulncheck.com/advisories/surrealdb-before-array-element-permission-bThird Party Advisory

FAQ

What is CVE-2026-63740?

CVE-2026-63740 is a vulnerability with a CVSS score of 6.5 (MEDIUM). SurrealDB versions before 3.1.4 fail to properly enforce SELECT permissions on array elements (field.*) for record users, leaking denied array elements instead of hiding them. Attackers with record sc...

How severe is CVE-2026-63740?

CVE-2026-63740 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-63740?

Check the references section above for vendor advisories and patch information. Affected products include: Surrealdb Surrealdb.