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CVE-2025-71390— SurrealDB before 2.3.6 deny-net Bypass via DNS Resolution

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是SurrealDB公司开源的一个文档图数据库。 SurrealDB 2.2.6之前版本、2.3.6之前版本和2.1.8之前版本（以及3.0.0-alpha.7及之前版本）存在授权问题漏洞，该漏洞源于未能针对--deny-net网络访问限制验证DNS解析的主机名，可能导致已认证用户通过http::*函数绕过网络访问控制，访问受限内部端点并检索或修改敏感信息和凭据。

CVSS 5.8 · Medium EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services

Affected Version Matrix 6

VendorProduct Version RangeStatus
surrealdb surrealdb ≤ 2.1.7 affected
2.2.0< 2.2.6 affected
2.2.6 unaffected
2.3.0< 2.3.6 affected
2.3.6 unaffected
3.0.0-alpha.1≤ 3.0.0-alpha.7 affected
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I. Basic Information for CVE-2025-71390

Vulnerability Information
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Vulnerability Title
SurrealDB before 2.3.6 deny-net Bypass via DNS Resolution
Source: CVE Program / CVE List V5
Vulnerability Description
SurrealDB before 2.2.6, 2.3.6, and 2.1.8 (and 3.0.0-alpha.7 and earlier) fails to validate DNS-resolved hostnames against --deny-net network access restrictions in its http::* functions. An authenticated user can invoke http::<fn>(<url>) with a hostname that resolves to a denied IP address, causing the server to issue the request anyway and return the response. This bypasses network access controls, allowing access to restricted internal endpoints and potentially retrieving or altering sensitive information and credentials, depending on the deployment.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
SurrealDB 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
surrealdb是SurrealDB公司开源的一个文档图数据库。 SurrealDB 2.2.6之前版本、2.3.6之前版本和2.1.8之前版本（以及3.0.0-alpha.7及之前版本）存在授权问题漏洞，该漏洞源于未能针对--deny-net网络访问限制验证DNS解析的主机名，可能导致已认证用户通过http::*函数绕过网络访问控制，访问受限内部端点并检索或修改敏感信息和凭据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
surrealdb surrealdb 0 ~ 2.1.7 -

II. Public POCs for CVE-2025-71390

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III. Intelligence Information for CVE-2025-71390

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Vendor Advisories for CVE-2025-71390 (2)

Same Patch Batch · surrealdb · 2026-07-18 · 24 CVEs total

CVE-2025-71392 9.4 CRITICAL SurrealDB before 2.2.2 SurrealQL Injection via export
CVE-2024-58362 8.8 HIGH SurrealDB before 1.5.5 Query Injection via RPC API
CVE-2023-54366 8.8 HIGH SurrealDB before 1.0.1 Insecure Default Table Permissions
CVE-2024-58366 8.5 HIGH SurrealDB before 1.1.1 Format String via Scripting Functions
CVE-2024-58368 7.5 HIGH SurrealDB before 1.1.0 Denial of Service via HTTP Headers
CVE-2025-71395 7.1 HIGH SurrealDB before 2.2.2 Memory Exhaustion via string::replace
CVE-2025-71397 7.1 HIGH SurrealDB before 2.2.2 CPU Exhaustion via nested FOR loops
CVE-2025-71391 7.1 HIGH SurrealDB before 2.2.2 Denial of Service via /sql endpoint
CVE-2024-58367 7.1 HIGH SurrealDB before 2.0.4 Improper Authorization via SELECT Permissions
CVE-2024-58365 6.5 MEDIUM SurrealDB before 1.2.0 Denial of Service via Nonexistent Function
CVE-2024-58369 6.5 MEDIUM SurrealDB before 1.1.1 Denial of Service via Global Parameters
CVE-2024-58361 6.5 MEDIUM SurrealDB before 2.0.4 Denial of Service via Parser Exception
CVE-2024-58370 6.5 MEDIUM SurrealDB before 1.1.0 Uncontrolled Recursion Denial of Service
CVE-2024-58357 6.5 MEDIUM SurrealDB before 2.1.0 Denial of Service via rand::time()
CVE-2024-58359 6.5 MEDIUM SurrealDB before 2.1.0 Denial of Service via rand() Sorting
CVE-2024-58364 6.5 MEDIUM SurrealDB before 1.2.1 Denial of Service via Parsing Error
CVE-2024-58363 6.3 MEDIUM SurrealDB before 1.5.4 Authentication Bypass via Database Switch
CVE-2025-71393 6.0 MEDIUM SurrealDB before 2.2.2 Memory Exhaustion via Nested Functions
CVE-2025-71398 5.8 MEDIUM SurrealDB before 2.2.2 SSRF via HTTP Redirect Bypass
CVE-2024-58358 4.9 MEDIUM SurrealDB before 2.1.0 Denial of Service via Nonexistent Role

Showing top 20 of 24 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: surrealdb
Same vendor: surrealdb
Same weakness: CWE-863

V. Comments for CVE-2025-71390

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