CVEvulnerability
CVE-2026-102876
8.6 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-09-29
- Last modified
- 2026-10-02
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.6 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-639
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.
Related
Weakness · CWE (1)
- CWE-639 Authorization Bypass Through User-Controlled Key weakness
References
- https://github.com/surrealdb/surrealdb github.com
- https://github.com/surrealdb/surrealdb/blob/v3.2.4/surrealdb/server/src/ntw/auth.rs github.com
- https://github.com/surrealdb/surrealdb/commit/5000e233b4a8b96689c82715c172061dcf711d31 github.com
- https://github.com/surrealdb/surrealdb/releases/tag/v3.3.0 github.com
- https://github.com/surrealdb/surrealdb/security/advisories/GHSA-vx2p-7hhm-wv62 github.com
- https://www.vulncheck.com/advisories/surrealdb-before-3.3.0-cross-tenant-access-via-headers www.vulncheck.com