CVE-2026-63748: SurrealDB before 3.1.0 Information Disclosure via Error Messages

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: 2026-07-20 · updated 2026-07-22
Weakness: CWE-209

Description

SurrealDB versions before 3.1.0 contain an information disclosure vulnerability where authenticated users with UPDATE access can read field values hidden by field-level SELECT permissions through error messages. Attackers can trigger arithmetic or extend operations on hidden fields to embed raw operand values in error responses, bypassing field-level access controls.

Affected products

surrealdb: before 3.1.0 — fixed in 3.1.0

How to fix

Upgrade to a fixed version: surrealdb 3.1.0. Check the vendor advisory for mitigations.

References

https://github.com/surrealdb/surrealdb/security/advisories/GHSA-6g9v-7gq3-p2c6
https://www.vulncheck.com/advisories/surrealdb-before-information-disclosure-via-error-messages

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