Lack of Tenant Separation in SuperTokens Core Affects User Data Security
CVE-2026-37171

5.9MEDIUM

Key Information:

Vendor

SuperTokens Inc.

Status
SuperTokens Core
Vendor
CVE Published:
7 August 2026

What is CVE-2026-37171?

A severe issue in SuperTokens Core, versions 6.0.0 to 11.4.0, allows authenticated users from one tenant to gain unauthorized access to sessions, data, and endpoints belonging to another tenant. This lack of tenant isolation can lead to significant data breaches and expose sensitive information across multi-tenant environments.

References

https://whitenbaker.com/supertokens-core-multitenant-advi...

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.