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CVE-2026-63749— SurrealDB before 3.1.0 Authentication Bypass via LIVE SELECT

CVSS 4.3 · Medium EPSS 0.22% · P13

Affected Version Matrix 2

VendorProductVersion RangeStatus
surrealdbsurrealdb< 3.1.0affected
3.1.0unaffected
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I. Basic Information for CVE-2026-63749

Vulnerability Information
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Vulnerability Title
SurrealDB before 3.1.0 Authentication Bypass via LIVE SELECT
Source: CVE Program / CVE List V5
Vulnerability Description
SurrealDB versions before 3.1.0 contain an authentication bypass vulnerability in LIVE SELECT subscriptions where permission expressions referencing $value, $before, $after, or $event are evaluated against attacker-controlled bindings instead of actual documents. Authenticated subscribers can bind chosen values to these parameter names and register LIVE SELECT queries to receive notifications for records that SELECT permission expressions should have hidden.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
SurrealDB 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
surrealdb是SurrealDB公司开源的一个文档图数据库。 SurrealDB 3.1.0之前版本存在授权问题漏洞，该漏洞源于LIVE SELECT订阅中存在身份验证绕过，对$value、$before、$after或$event的权限表达式针对攻击者控制的绑定而不是实际文档进行评估，导致经过身份验证的订阅者可以绑定选定值并注册LIVE SELECT查询以接收本应隐藏的记录通知。
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

VendorProductAffected VersionsCPESubscribe
surrealdbsurrealdb 0 ~ 3.1.0 -

II. Public POCs for CVE-2026-63749

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III. Intelligence Information for CVE-2026-63749

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Vendor Advisories for CVE-2026-63749 (2)

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

CVE-2026-637578.8 HIGHSurrealDB before 3.1.0 Session Hijacking via /rpc sessions
CVE-2026-637358.1 HIGHSurrealDB before 3.2.0 Authentication Bypass via Custom API
CVE-2026-637568.1 HIGHSurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition
CVE-2026-637397.7 HIGHSurrealDB before 3.1.5 Arbitrary File Read via DEFINE ANALYZER
CVE-2026-637477.5 HIGHSurrealDB before 3.1.0 Denial of Service via malformed RPC use
CVE-2026-637607.5 HIGHSurrealDB before 3.1.0 Denial of Service via JSON Parser
CVE-2026-637556.5 MEDIUMSurrealDB before 3.1.0 Permission Bypass via WHERE Clause
CVE-2026-637596.5 MEDIUMSurrealDB before 3.1.0 Denial of Service nested type annotations
CVE-2026-637406.5 MEDIUMSurrealDB before 3.1.4 Array Element Permission Bypass
CVE-2026-637376.5 MEDIUMSurrealDB before 3.1.5 Denial of Service via deep operator chains
CVE-2026-637416.5 MEDIUMSurrealDB before 3.1.0 Authentication Bypass via USE statement
CVE-2026-637546.5 MEDIUMSurrealDB before 3.1.0 Denial of Service via LIVE Query
CVE-2026-637466.5 MEDIUMSurrealDB before 3.1.0 Permission Bypass via Graph Traversal
CVE-2026-637436.4 MEDIUMSurrealDB before 3.1.0 Port-Specific Deny Rule Bypass via HTTP Redirect
CVE-2026-637455.4 MEDIUMSurrealDB before 3.1.0 Authorization Bypass via Composite Record-id
CVE-2026-637585.4 MEDIUMSurrealDB before 3.1.0 Authorization Bypass via KILL Statement
CVE-2026-637505.3 MEDIUMSurrealDB before 3.1.0 Memory Amplification via /sql WebSocket
CVE-2026-637344.9 MEDIUMSurrealDB before 3.2.0 Denial of Service via malformed SurrealML import
CVE-2026-637484.3 MEDIUMSurrealDB before 3.1.0 Information Disclosure via Error Messages
CVE-2026-637384.3 MEDIUMSurrealDB 3.1.0 before 3.1.5 Field Permission Bypass via Traversal

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

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-63749

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