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CVE-2026-109343

8.1, high

surrealdb Authorization Bypass Through User-Controlled Key Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
8.1, high high CVSS v3.1
EPSS, next 30 days
0.3% higher than 16.2% of scored CVEs
Exploitation
No public evidence
Published
12 Oct 20265 days ago

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.

Details

Vendor
Surrealdb
Product
surrealdb
Weakness
CWE-639 (opens in a new tab)
Status
Deferred
Updated
12 Oct 2026
Assigner
disclosure@vulncheck.com

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

References 2

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Surrealdb CVEs

Every Surrealdb CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-109334 surrealdb Authorization Bypass Through User-Controlled Key Vulnerability EPSS 0.3% 8.1, high
  • CVE-2026-109341 surrealdb Exposure of Sensitive Information Vulnerability EPSS 0.3% 7.1, high

Beyond this page

Is CVE-2026-109343 in your network?

This page tells you how dangerous CVE-2026-109343 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.