CVE-2026-102876

HighCVSS 8.1/10Last modified Oct 2, 2026

Description

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.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-639

Affected software

Vendor	Product	Versions
surrealdb	surrealdb	< 3.3.0

References

Timeline

Published: Sep 29, 2026
Last modified: Oct 2, 2026
NVD status: Deferred

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