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Vulnerability record · CVE-2026-63740 · published 20 July 2026

CVE-2026-63740: Surrealdb incorrect authorization vulnerability

Surrealdb · Surrealdb

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.

7.1 CVSS 4.0 High EPSS 0.36% · top 73.0% CWE-863 · Incorrect authorization
7.1CVSS 4.0 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
22 Jul 2026Last modified by NVD

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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-8rw6-p7m8-63jp Vendor AdvisoryMitigation
https://www.vulncheck.com/advisories/surrealdb-before-array-element-permission-bypass Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-63740), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.