SurrealDB up to 3.0.x Permission Check permission

Summaryinfo

A vulnerability was found in SurrealDB up to 3.0.x. It has been classified as critical. The affected element is an unknown function of the component Permission Check. Performing a manipulation results in permission. This vulnerability is known as CVE-2026-63755. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in SurrealDB up to 3.0.x. This affects an unknown code block of the component Permission Check. The manipulation with an unknown input leads to a permission vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

SurrealDB before 3.1.0 evaluates user-supplied WHERE clauses in SELECT statements (and SET/MERGE/CONTENT/PATCH clauses in UPDATE, UPSERT, INSERT ON DUPLICATE KEY UPDATE, and RELATE update-variant statements) against full record data before enforcing PERMISSIONS FOR SELECT WHERE restrictions. An authenticated user — including Record and Scope users — can exploit this ordering flaw to read the full contents of any table in the database they are authenticated against, bypassing table-level permission checks. Exfiltration is most direct when scripting functions are enabled (--allow-scripting), but is also possible via SurrealQL's THROW statement and timing-based side channels without scripting. The vulnerability is confined to the attacker's current database and does not cross namespace or database isolation boundaries.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-63755 since 07/18/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

Upgrading to version 3.1.0 eliminates this vulnerability.

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Productinfo

Name

• SurrealDB

Version

• 3.0

Website

• Product: https://github.com/surrealdb/surrealdb/

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CPE 2.2info

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