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CVE-2026-63743— SurrealDB before 3.1.0 Port-Specific Deny Rule Bypass via HTTP Redirect

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 3.1.0之前版本存在服务端请求伪造漏洞，该漏洞源于HTTP重定向处理中存在能力绕过漏洞，可能导致经过身份验证的用户绕过端口范围的 --deny-net 规则。

CVSS 6.4 · Medium EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1071 · Application Layer Protocol

Affected Version Matrix 2

VendorProduct Version RangeStatus
surrealdb surrealdb < 3.1.0 affected
3.1.0 unaffected
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I. Basic Information for CVE-2026-63743

Vulnerability Information
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Vulnerability Title
SurrealDB before 3.1.0 Port-Specific Deny Rule Bypass via HTTP Redirect
Source: CVE Program / CVE List V5
Vulnerability Description
SurrealDB before 3.1.0 contains a capability bypass vulnerability in HTTP redirect handling that allows authenticated users to circumvent port-scoped --deny-net rules. Attackers can chain an HTTP redirect from an allowed hostname to a denied host:port combination, and the redirect is followed because the port information is dropped during redirect policy evaluation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
SurrealDB 服务端请求伪造漏洞
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 3.1.0之前版本存在服务端请求伪造漏洞，该漏洞源于HTTP重定向处理中存在能力绕过漏洞，可能导致经过身份验证的用户绕过端口范围的 --deny-net 规则。
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 ~ 3.1.0 -

II. Public POCs for CVE-2026-63743

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III. Intelligence Information for CVE-2026-63743

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Vendor Advisories for CVE-2026-63743 (2)

Same Patch Batch · surrealdb · 2026-07-20 · 31 CVEs total

CVE-2026-63757 8.8 HIGH SurrealDB before 3.1.0 Session Hijacking via /rpc sessions
CVE-2026-63735 8.1 HIGH SurrealDB before 3.2.0 Authentication Bypass via Custom API
CVE-2026-63756 8.1 HIGH SurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition
CVE-2026-63739 7.7 HIGH SurrealDB before 3.1.5 Arbitrary File Read via DEFINE ANALYZER
CVE-2026-63763 7.5 HIGH SurrealDB before 2.5.0 Privilege Escalation via Future Fields
CVE-2026-63747 7.5 HIGH SurrealDB before 3.1.0 Denial of Service via malformed RPC use
CVE-2026-63760 7.5 HIGH SurrealDB before 3.1.0 Denial of Service via JSON Parser
CVE-2026-63755 6.5 MEDIUM SurrealDB before 3.1.0 Permission Bypass via WHERE Clause
CVE-2026-63759 6.5 MEDIUM SurrealDB before 3.1.0 Denial of Service nested type annotations
CVE-2026-63740 6.5 MEDIUM SurrealDB before 3.1.4 Array Element Permission Bypass
CVE-2026-63737 6.5 MEDIUM SurrealDB before 3.1.5 Denial of Service via deep operator chains
CVE-2026-63741 6.5 MEDIUM SurrealDB before 3.1.0 Authentication Bypass via USE statement
CVE-2026-63754 6.5 MEDIUM SurrealDB before 3.1.0 Denial of Service via LIVE Query
CVE-2026-63746 6.5 MEDIUM SurrealDB before 3.1.0 Permission Bypass via Graph Traversal
CVE-2026-63762 6.0 MEDIUM SurrealDB before v2.6.1 Denial of Service via scripting
CVE-2026-63745 5.4 MEDIUM SurrealDB before 3.1.0 Authorization Bypass via Composite Record-id
CVE-2026-63758 5.4 MEDIUM SurrealDB before 3.1.0 Authorization Bypass via KILL Statement
CVE-2026-63750 5.3 MEDIUM SurrealDB before 3.1.0 Memory Amplification via /sql WebSocket
CVE-2026-63734 4.9 MEDIUM SurrealDB before 3.2.0 Denial of Service via malformed SurrealML import
CVE-2026-63748 4.3 MEDIUM SurrealDB before 3.1.0 Information Disclosure via Error Messages

Showing top 20 of 31 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: surrealdb
Same vendor: surrealdb
Same weakness: CWE-918

V. Comments for CVE-2026-63743

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