CVE-2026-121422— SurrealDB from 3.1.0 before 3.3.0 SSRF via JWKS Implicit Default Port Bypass

Quick assessment

Affected

surrealdb surrealdb

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SurrealDB 3.1.0 至 3.3.0（不含 3.3.0）版本中存在一个服务器端请求伪造（SSRF）漏洞。该漏洞允许数据库所有者利用带有隐式默认端口的 JWKS URL，绕过针对特定端口的 deny-net（网络拒绝）规则。攻击者可配置 JWT 或记录访问方法，使其 JWKS URL 省略端口 80 或 443，从而向明确被禁止的内部服务发起盲式 GET 请求。

CVSS 4.1 · Medium Updated Nov 03, 2026

Possible ATT&CK Techniques 2 AI

T1071 · Application Layer Protocol T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

SurrealDB from 3.1.0 before 3.3.0 SSRF via JWKS Implicit Default Port Bypass

Source: CVE Program / CVE List V5

Vulnerability Description

SurrealDB from 3.1.0 before 3.3.0 contains a server-side request forgery vulnerability that allows database Owners to bypass port-specific deny-net rules by using JWKS URLs with implicit default ports. Attackers can configure a JWT or record access method whose JWKS URL omits port 80 or 443, causing blind GET requests to explicitly denied internal services.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

服务端请求伪造(SSRF)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
surrealdb	surrealdb	3.1.0 ~ 3.3.0	-

II. Public POCs for CVE-2026-121422

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-121422

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Other References for CVE-2026-121422 (2)

https://github.com/surrealdb/surrealdb/security/advisories/GHSA-h3mp-7wcg-p6vj vendor-advisory
https://www.vulncheck.com/advisories/surrealdb-from-3.1.0-before-3.3.0-ssrf-via-jwks-implicit-default-port-bypass third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-121422

Same Patch Batch · surrealdb · 2026-11-03 · 8 CVEs total

CVE-2026-121419	8.1 HIGH	SurrealDB 3.1.0 before 3.3.0 MCP Session Hijack via BoundSubject Collision
CVE-2026-121417	7.8 HIGH	SurrealDB before 3.3.0 Use-After-Free via affinitypool spawn_local in KV Backends
CVE-2026-121416	7.1 HIGH	SurrealDB 2.0.0 before 3.3.1 deny-funcs Capability Bypass via Method-Style Invocations
CVE-2026-121423	6.5 MEDIUM	SurrealDB before 3.3.0 DoS via Unbounded Recursion in val::Value Serialization
CVE-2026-121418	4.3 MEDIUM	SurrealDB 3.1.0 before 3.3.0 Incorrect Authorization via Streaming Index Planner
CVE-2026-121421	4.3 MEDIUM	SurrealDB 3.1.0 before 3.3.0 SSRF via Port-Specific --deny-net Host Aliasing Bypass
CVE-2026-121420	3.3 LOW	SurrealDB 3.2.0 before 3.3.0 SSRF Guard Bypass via IPv6 Transition Addresses

IV. Related Vulnerabilities

Same product: surrealdb

Same vendor: surrealdb

Same weakness: CWE-918