CVE-2026-63751 | SurrealDB versions before 3.1.0 contain a field-level permis… | CVSS 4.3 MEDIUM

Description

SurrealDB versions before 3.1.0 contain a field-level permission bypass vulnerability in JSON Patch operations that allows authenticated users to read protected fields. Attackers can use UPDATE PATCH with an empty from pointer in copy or move operations to duplicate all record fields, including those restricted by field-level SELECT permissions, into attacker-chosen destination fields.

Metadata

CVE ID: CVE-2026-63751
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-07-18 12:26 UTC
Published: 2026-07-20 12:04 UTC
Last updated: 2026-07-20 15:56 UTC
Primary CWE: CWE-863
Incorrect Authorization
Vendor / Product: surrealdb / surrealdb
Sources: cve.org · NVD

Severity & Metrics

4.3 MEDIUM CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
surrealdb	surrealdb	—	0 < 3.1.0, 3.1.0

Weakness (CWE)

CWE	Source	Description
CWE-863	cna	Incorrect Authorization

CVSS scores (2)

Score	Severity	Version	Source	Vector
5.3	MEDIUM	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
4.3	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References (2)

GitHub Security Advisory (GHSA-fpxg-5xmv-922m) https://github.com/surrealdb/surrealdb/security/advisories/GHSA-fpxg-5xmv-922m
VulnCheck Advisory: SurrealDB before 3.1.0 Field Permission Bypass via JSON Patch https://www.vulncheck.com/advisories/surrealdb-before-field-permission-bypass-via-json-patch