CVE-2026-102876

SurrealDB before 3.3.0 contains an authorization bypass in HTTP session construction where check_auth() verifies credentials against Surreal-Auth-NS and Surreal-Auth-DB headers but constructs sessions using Surreal-NS and Surreal-DB headers without validating access permissions. Attackers can authenticate as a user from one tenant while selecting another tenant's namespace and database to read, create, and modify records across tenant boundaries.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/surrealdb/surrealdb
https://github.com/surrealdb/surrealdb/blob/v3.2.4/surrealdb/server/src/ntw/auth.rs
https://github.com/surrealdb/surrealdb/commit/5000e233b4a8b96689c82715c172061dcf711d31
https://github.com/surrealdb/surrealdb/releases/tag/v3.3.0
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-vx2p-7hhm-wv62
https://www.vulncheck.com/advisories/surrealdb-before-3.3.0-cross-tenant-access-via-headers

Configurations

No configuration.

History

29 Sep 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-29 20:17

Updated : 2026-10-02 13:17

NVD link : CVE-2026-102876

Mitre link : CVE-2026-102876

CVE.ORG link : CVE-2026-102876

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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