CVE-2026-63309: SurrealDB < 3.1.5 Information Disclosure via ORDER BY

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-17 · updated 2026-10-24
Weakness: CWE-863

Description

SurrealDB before 3.1.5 fail to apply field-level SELECT permissions to ORDER BY clauses, allowing authenticated users to leak the relative ordering of restricted field values. Attackers can issue ORDER BY queries on indexed restricted fields to recover the hidden values' sort order across records, even though the field itself returns null as intended.

Affected products

surrealdb: from 3.0.0 before 3.1.5 — fixed in 3.1.5

How to fix

Upgrade to a fixed version: surrealdb 3.1.5. Check the vendor advisory for mitigations.

References

https://github.com/surrealdb/surrealdb/releases/tag/v3.1.5
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-h4h3-3rfj-x6fq
https://www.vulncheck.com/advisories/surrealdb-information-disclosure-via-order-by

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