CVE-2026-109334: high-severity vulnerability in surrealdb
SurrealDB before 3.3.0 Cross-Tenant Access via Surreal-NS/Surreal-DB Headers and RPC use
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.6epss 0.3%
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.
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
Affected products
surrealdb · surrealdbRelated CVEs — surrealdb
In the same product, most dangerous first.
CVE-2024-58368HIGHSurrealDB before 1.1.0 Denial of Service via HTTP HeadersEPSS 0.7%CVE-2024-58362HIGHSurrealDB before 1.5.5 Query Injection via RPC APIEPSS 0.6%CVE-2024-58366CRITICALSurrealDB before 1.1.1 Format String via Scripting FunctionsEPSS 0.6%CVE-2025-71391HIGHSurrealDB before 2.2.2 Denial of Service via /sql endpointEPSS 0.6%CVE-2025-71397HIGHSurrealDB before 2.2.2 CPU Exhaustion via nested FOR loopsEPSS 0.6%CVE-2025-71396LOWSurrealDB before 2.2.2 Denial of Service via JavaScript ScriptingEPSS 0.6%