CVE-2026-109336: SurrealDB before 3.3.0 Field Permission Bypass via LIVE SELECT $before/$after

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-12 · updated 2026-10-26
Weakness: CWE-863

Description

SurrealDB before 3.3.0 contains an authorization bypass vulnerability that allows record users to read fields hidden by field-level SELECT permissions through LIVE SELECT projections. Attackers can project restricted fields from the unreduced $after or $before parameters under an alias to receive exact stored values in CREATE, UPDATE, and DELETE notifications.

Affected products

surrealdb: before 3.3.0 — fixed in 3.3.0

How to fix

Upgrade to a fixed version: surrealdb 3.3.0. Check the vendor advisory for mitigations.

References

https://github.com/surrealdb/surrealdb/security/advisories/GHSA-pm6c-q8rh-92m8
https://www.vulncheck.com/advisories/surrealdb-before-3.3.0-field-permission-bypass-via-live-select-before-after

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