CVE-2026-63740: SurrealDB before 3.1.4 Array Element Permission Bypass
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
SurrealDBto a version that resolves this vulnerability.Fixed in 3.1.4
Event History
Frequently Asked Questions
What is the severity of CVE-2026-63740?
CVE-2026-63740 has a severity rating of 7.1, classified as high.
How do I fix CVE-2026-63740?
To fix CVE-2026-63740, upgrade SurrealDB to version 3.1.4 or later.
What type of vulnerability is CVE-2026-63740?
CVE-2026-63740 is classified as an array element permission bypass vulnerability.
Who is affected by CVE-2026-63740?
Users and administrators of SurrealDB versions prior to 3.1.4 are affected by CVE-2026-63740.
What are the potential impacts of CVE-2026-63740?
CVE-2026-63740 may allow attackers with record scope access to read sensitive array elements that should be denied.