Vulnerability · Published Nov 3, 2026 · Assigned by VulnCheck

CVE-2026-121416SurrealDB 2.0.0 before 3.3.1 deny-funcs Capability Bypass via Method-Style Invocations

High 7.1

In plain English

A high-severity improper access control in surrealdb from surrealdb. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.3%top 75.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
surrealdb	surrealdb	2.0.0 – before 3.3.1

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References

GitHub Security Advisory (GHSA-p296-7pr4-87rr) vendor-advisory
VulnCheck Advisory: SurrealDB 2.0.0 before 3.3.1 deny-funcs Capability Bypass via Method-Style Invocations third-party-advisory