Uncontrolled Recursion Affecting surrealdb package, versions >=3.0.0 <3.1.5
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published28 Jun 2026
- disclosed19 Jun 2026
- creditUnknown
Introduced: 19 Jun 2026
CVE-2026-63737 (opens in a new tab)How to fix?
Upgrade surrealdb to version 3.1.5 or higher.
Overview
Affected versions of this package are vulnerable to Uncontrolled Recursion in the query processing process. An attacker can cause the server to crash and deny service to all users by submitting a query containing a very long chain of operators, which leads to stack exhaustion and process termination.
Workaround
This vulnerability can be mitigated by restricting untrusted users from executing arbitrary queries using the --deny-arbitrary-query capability flag, limiting untrusted access to the WebSocket /rpc endpoint, or running the server under a process manager that automatically restarts it after a crash.