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

Medium 5.3 Published Updated

Authenticated users can bypass field-level access controls to read hidden data via error messages in SurrealDB.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-63748?

CVE-2026-63748 is a medium-severity vulnerability in Surrealdb Surrealdb, published on 20 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-209

Which versions are affected by CVE-2026-63748?

2 open source packages ship an affected version, including surrealdb. It affects 1 product.

PackageAffectedFixed in
surrealdb crates.ioAll versions3.1.0
surrealdb crates.ioAll versions3.1.0

Products include Surrealdb Surrealdb.

How do I fix CVE-2026-63748?

Upgrade surrealdb to 3.1.0 or later.

Is CVE-2026-63748 being exploited?

There is no known exploitation of CVE-2026-63748 in the wild and no public exploit code.

All Surrealdb Surrealdb vulnerabilities

Sources

Also known as GHSA-6g9v-7gq3-p2c6.

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