SSRF in Surrealdb
CVE-2026-121420
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/surrealdb/surrealdb/security/advisories/GHSA-c9wc-jcr5-8974 (vendor-advisory)
- www.vulncheck.com/advisories/surrealdb-3.2.0-before-3.3.0-ssrf-guard-bypass-via… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-121420?
- CVE-2026-121420 is a low-severity vulnerability in Surrealdb, classified under Server-Side Request Forgery (SSRF). CVSS score: 3.3/10. Published 2026-11-03.
- How severe is CVE-2026-121420?
- Low severity. CVSS v3 base score is 3.3 out of 10.