High severity8.1NVD Advisory· Published Sep 29, 2026· Updated Sep 29, 2026
CVE-2026-102876
CVE-2026-102876
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.
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Affected products
1Patches
Vulnerability mechanics
References
5- github.com/surrealdb/surrealdb/blob/v3.2.4/surrealdb/server/src/ntw/auth.rsnvd
- github.com/surrealdb/surrealdb/commit/5000e233b4a8b96689c82715c172061dcf711d31nvd
- github.com/surrealdb/surrealdb/releases/tag/v3.3.0nvd
- github.com/surrealdb/surrealdb/security/advisories/GHSA-vx2p-7hhm-wv62nvd
- www.vulncheck.com/advisories/surrealdb-before-3.3.0-cross-tenant-access-via-headersnvd
News mentions
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