CVE-2026-63755 SurrealDB before 3.1.0 Permission Bypass via WHERE Clause
Authenticated users can bypass table-level permission checks to read full record data via WHERE clause evaluation order flaws.
- 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-2026-63755?
CVE-2026-63755 is a high-severity missing authorization 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 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.
Weakness: CWE-863
Which versions are affected by CVE-2026-63755?
2 open source packages ship an affected version, including surrealdb. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
surrealdb crates.io | All versions | 3.1.0 |
surrealdb crates.io | All versions | 3.1.0 |
Products include Surrealdb Surrealdb.
How do I fix CVE-2026-63755?
Upgrade surrealdb to 3.1.0 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-63755 being exploited?
There is no known exploitation of CVE-2026-63755 in the wild and no public exploit code.
Other vulnerabilities in Surrealdb Surrealdb
- CVE-2025-71392 SurrealDB before 2.2.2 SurrealQL Injection via export
- CVE-2026-63756 SurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition
- CVE-2026-63747 SurrealDB before 3.1.0 Denial of Service via malformed RPC use
- CVE-2026-63757 SurrealDB before 3.1.0 Session Hijacking via /rpc sessions
- CVE-2026-63760 SurrealDB before 3.1.0 Denial of Service via JSON Parser
Sources
Also known as GHSA-98fx-66cf-fc7c.