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CVE-2026-63739— SurrealDB before 3.1.5 Arbitrary File Read via DEFINE ANALYZER

Quick assessment

Affected
surrealdb surrealdb
Exploitation
Public or AI PoC available; prioritize validation
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 3.1.5之前版本存在路径遍历漏洞，该漏洞源于DEFINE ANALYZER mapper filter中存在任意文件读取漏洞，导致具有EDITOR或OWNER角色的数据库用户能够读取SurrealDB进程可访问的文件，攻击者可以在mapper filter中指定任意文件路径，并在SURREAL_FILE_ALLOWLIST为空或未配置时通过查询错误消息检索文件内容。

CVSS 7.7 · High EPSS 0.48% · P39

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 2

VendorProduct Version RangeStatus
surrealdb surrealdb < 3.1.5 affected
3.1.5 unaffected
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I. Basic Information for CVE-2026-63739

Vulnerability Information
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Vulnerability Title
SurrealDB before 3.1.5 Arbitrary File Read via DEFINE ANALYZER
Source: CVE Program / CVE List V5
Vulnerability Description
SurrealDB before 3.1.5 contains an arbitrary file read vulnerability in the DEFINE ANALYZER mapper filter that allows database users with EDITOR or OWNER roles to read files accessible to the SurrealDB process. Attackers can specify arbitrary file paths in the mapper filter and retrieve file contents through query error messages when the SURREAL_FILE_ALLOWLIST is empty or not configured.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
SurrealDB 路径遍历漏洞
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 3.1.5之前版本存在路径遍历漏洞，该漏洞源于DEFINE ANALYZER mapper filter中存在任意文件读取漏洞，导致具有EDITOR或OWNER角色的数据库用户能够读取SurrealDB进程可访问的文件，攻击者可以在mapper filter中指定任意文件路径，并在SURREAL_FILE_ALLOWLIST为空或未配置时通过查询错误消息检索文件内容。
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 ~ 3.1.5 -

II. Public POCs for CVE-2026-63739

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 4758 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-63739

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Vendor Advisories for CVE-2026-63739 (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-2026-63763 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-2026-63754 6.5 MEDIUM SurrealDB before 3.1.0 Denial of Service via LIVE Query
CVE-2026-63759 6.5 MEDIUM SurrealDB before 3.1.0 Denial of Service nested type annotations
CVE-2026-63755 6.5 MEDIUM SurrealDB before 3.1.0 Permission Bypass via WHERE Clause
CVE-2026-63740 6.5 MEDIUM SurrealDB before 3.1.4 Array Element Permission Bypass
CVE-2026-63741 6.5 MEDIUM SurrealDB before 3.1.0 Authentication Bypass via USE statement
CVE-2026-63737 6.5 MEDIUM SurrealDB before 3.1.5 Denial of Service via deep operator chains
CVE-2026-63746 6.5 MEDIUM SurrealDB before 3.1.0 Permission Bypass via Graph Traversal
CVE-2026-63743 6.4 MEDIUM SurrealDB before 3.1.0 Port-Specific Deny Rule Bypass via HTTP Redirect
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-2026-63749 4.3 MEDIUM SurrealDB before 3.1.0 Authentication Bypass via LIVE SELECT

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

IV. Related Vulnerabilities

Same product: surrealdb
Same vendor: surrealdb
Same weakness: CWE-22

V. Comments for CVE-2026-63739

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