CVE-2026-109334CWE-639

CVE-2026-109334

High · published October 12, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
16.5
In the wild
Unconfirmed
What it is

SurrealDB before 3.3.0 does not check the caller-selected namespace or database against the level at which a namespace- or database-level system user authenticated, allowing cross-tenant access. An authenticated attacker can set the Surreal-NS/Surreal-DB headers on /sql or call the RPC use method to read, create, modify, and delete rows and read DEFINE PARAM values in another tenant where table PERMISSIONS allow it.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
8.6 · 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
EPSS
0.00258 · 16.5th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-10-12T21:17Z
References (2)
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-w5v9-jc5f-5rmc · [email protected]https://www.vulncheck.com/advisories/surrealdb-before-3.3.0-cross-tenant-access-via-surreal-ns-surreal-db-headers-and-rpc-use · [email protected]
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 12 OCT 16:05Z
    SurrealDB before 3.3.0 Cross-Tenant Access via Surreal-NS/Surreal-DB Headers and RPC use
    cvelistv5
  • 12 OCT 16:05Z
    SurrealDB before 3.3.0 Cross-Tenant Access via Surreal-NS/Surreal-DB Headers and RPC use
    cvelistv5