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CVE-2026-109334 Details

ANALYZED

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

Description

SurrealDB before 3.3.0 does not check the caller-selected namespace or database against the level at which a namespace- or database-level system user authenticated, allowing cross-tenant access. An authenticated attacker can set the Surreal-NS/Surreal-DB headers on /sql or call the RPC use method to read, create, modify, and delete rows and read DEFINE PARAM values in another tenant where table PERMISSIONS allow it.

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-w5v9-jc5f-5rmc	[email protected]	AdvisoryBundleRemedyVendor
https://www.vulncheck.com/advisories/surrealdb-before-3.3.0-cross-tenant-access-via-surreal-ns-surreal-db-headers-and-rpc-use	[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]