TI-2026-84302 Aliases CVE-2026-121420 GHSA-3rgm-63j6-74qx

SSRF guard bypass in SurrealDB via IPv6 transition addresses

LOW 21CWE-918Published 2026-11-03 · Updated 2026-11-03

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · Low · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

SurrealDB from 3.2.0 before 3.3.0 contains a server-side request forgery flaw in the FilteringResolver is_private_ip check, which fails to unwrap NAT64, 6to4, and Teredo IPv6 addresses (CWE-918). An authenticated user who triggers outbound HTTP requests through SurrealQL http functions can use these transition addresses to embed private IPv4 targets and reach localhost, internal services, or cloud metadata endpoints.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00163 5th percentileScored 2026-11-07

Fix Fixed surrealdb (surrealdb): 3.3.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
surrealdb	surrealdb	3.2.0 to before 3.3.0	3.3.0	Patch available	CNA

surrealdb Vendorsurrealdb Affected 3.2.0 to before 3.3.0 Fixed in 3.3.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:surrealdb:surrealdb::::::::	—	—	surrealdb

cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:* Versions — — ·surrealdb

Remediation

Upgrade SurrealDB to version 3.3.0 or later, which fixes the issue in the surrealdb package.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Fix · CNA surrealdb (surrealdb) Fixed in 3.3.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-11-03
surrealdb 3.3.0
7 records Highest priority Priority MEDIUM 2 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2026-84300 SurrealDB index planner lets users infer restricted fieldsPriority MEDIUM 57
- TI-2026-84304 Server-side request forgery in SurrealDB via JWKS URL default portsPriority MEDIUM 56
- TI-2026-84301 MCP session hijack in SurrealDB via shared BoundSubject fingerprintPriority LOW 37
Show all 7 records →

Timeline

2026-11-03 Threatist record created from CVE-2026-121420
2026-11-03 Alias added: GHSA-3rgm-63j6-74qx
2026-11-03 CISA SSVC decision points changed

References

Advisory 1

GitHub Security Advisory (GHSA-c9wc-jcr5-8974)

TI-2026-84300 SurrealDB index planner lets users infer restricted fields CVSS 4.0MEDIUM 5.3
TI-2026-84304 Server-side request forgery in SurrealDB via JWKS URL default ports CVSS 4.0MEDIUM 5.1
TI-2026-45344 SurrealDB before 3.1.0 Session Hijacking via /rpc sessions CVSS 4.0HIGH 8.7
TI-2024-38452 SurrealDB before 1.1.0 Denial of Service via HTTP Headers CVSS 4.0HIGH 8.7
TI-2026-45347 SurrealDB before 3.1.0 Denial of Service via JSON Parser CVSS 4.0HIGH 8.7
TI-2026-45334 SurrealDB before 3.1.0 Denial of Service via malformed RPC use CVSS 4.0HIGH 8.7

See all 76 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences