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CVE-2026-109343 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

SurrealDB before 3.3.0 allows cross-tenant access because the SurrealQL USE statement switches a session to any namespace/database without checking that the caller's authenticated level covers it. Authenticated namespace, database, or record users can switch to another tenant and read, create, update, or delete rows in tables whose PERMISSIONS allow it, such as PERMISSIONS FULL.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CNA: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-2v9j-645m-pcrq	[email protected]	AdvisoryRemedyVendor
https://www.vulncheck.com/advisories/surrealdb-before-3.3.0-cross-tenant-access-via-use-statement	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-639	Authorization Bypass Through User-Controlled Key	[email protected]

Affected Products

Product	Versions
SurrealDB	< 3.3.0 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 3.3.0moderate effort Workaround:low effort On shared instances, use separate deployments to isolate tenants. Until you upgrade, issue namespace, database, and record-level credentials only to parties trusted with every tenant on the instance. Mitigation:low effort Prefer a PERMISSIONS WHERE clause that checks the caller's identity, such as $auth or a token claim, over PERMISSIONS FULL. This reduces exposure but does not restore the boundary.

Product

Versions

SurrealDB

< 3.3.0 (semver)

CPE

No CPEs found in CPE dictionary for this product.

Remediation

Upgrade: 3.3.0moderate effort
Workaround:low effort
On shared instances, use separate deployments to isolate tenants. Until you upgrade, issue namespace, database, and record-level credentials only to parties trusted with every tenant on the instance.
Mitigation:low effort
Prefer a PERMISSIONS WHERE clause that checks the caller's identity, such as $auth or a token claim, over PERMISSIONS FULL. This reduces exposure but does not restore the boundary.

Change History

2 change records found show changes

Date	Action	Recorded By
Oct 13, 2026	CVE Modified	CISA-ADP
Oct 12, 2026	New CVE Received	[email protected]