CVE-2026-121416 Details
Description
SurrealDB 2.0.0 before 3.3.1 does not enforce --deny-funcs restrictions on method-style function calls in the streaming engine, because MethodPart::evaluate invokes resolved functions without a capability check. Authenticated users who can submit queries can run denied functions via method syntax, e.g. [1,2].map() or $f.put()/$f.get() to write and read file bucket data despite file::* denials.
A vulnerability exists in SurrealDB versions 2.0.0 prior to 3.3.1, where the database does not properly enforce function denial restrictions on method-style function calls within the streaming engine. This oversight allows authenticated users who can submit queries to invoke denied functions using method syntax, such as '[1,2].map()' or '$f.put()/$f.get()' to manipulate file bucket data, circumventing 'file::*' denials. The issue arises because the 'MethodPart::evaluate' function calls resolved functions without performing the necessary capability checks, leaving a gap in the application's function-level security control.
Users can update to SurrealDB version 3.3.1 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Nov 3, 2026CISA-ADP
Assessed Nov 3, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| SurrealDB | >= 2.0.0, < 3.3.1 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 3, 2026 | CVE Modified | CISA-ADP |
| Nov 3, 2026 | New CVE Received | [email protected] |