Vulnerability · Published Nov 3, 2026 · Assigned by VulnCheck

CVE-2026-121420SurrealDB 3.2.0 before 3.3.0 SSRF Guard Bypass via IPv6 Transition Addresses

Low 3.3

In plain English

A low-severity server-side request forgery 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 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 3.1)3.3Low

Exploit odds (30 days)0.2%top 94.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

SurrealDB from 3.2.0 before 3.3.0 contains a server-side request forgery vulnerability in the FilteringResolver is_private_ip check that fails to unwrap NAT64, 6to4, and Teredo IPv6 addresses. Authenticated users triggering outbound HTTP requests via SurrealQL http functions can use transition addresses embedding private IPv4 targets to reach localhost, internal services, or cloud metadata endpoints.

Affected products (as reported)

Vendor	Product	Versions
surrealdb	surrealdb	3.2.0 – before 3.3.0

Weakness: CWE-918 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

GitHub Security Advisory (GHSA-c9wc-jcr5-8974) vendor-advisory
VulnCheck Advisory: SurrealDB 3.2.0 before 3.3.0 SSRF Guard Bypass via IPv6 Transition Addresses third-party-advisory