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CVE-2025-71393— SurrealDB before 2.2.2 Memory Exhaustion via Nested Functions

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 2.2.2之前版本、2.1.5之前版本和2.0.5之前版本存在资源管理错误漏洞，该漏洞源于脚本功能启用时未能正确执行递归限制，当本地函数包含触发新查询的嵌入JavaScript时，可能导致经过身份验证的攻击者通过链式调用本地和JavaScript函数绕过递归限制，触发无限递归并耗尽服务器内存。

CVSS 6.0 · Medium EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 6

VendorProduct Version RangeStatus
surrealdb surrealdb < 2.2.2 affected
2.2.2 unaffected
< 2.1.5 affected
2.1.5 unaffected
< 2.0.5 affected
2.0.5 unaffected
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I. Basic Information for CVE-2025-71393

Vulnerability Information
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Vulnerability Title
SurrealDB before 2.2.2 Memory Exhaustion via Nested Functions
Source: CVE Program / CVE List V5
Vulnerability Description
SurrealDB before 2.2.2 with scripting enabled fails to properly enforce recursion limits when native functions contain embedded JavaScript that issues new queries. Authenticated attackers can bypass the recursion limit by chaining native and JavaScript function calls to trigger infinite recursion and exhaust server memory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
SurrealDB 资源管理错误漏洞
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 2.2.2之前版本、2.1.5之前版本和2.0.5之前版本存在资源管理错误漏洞，该漏洞源于脚本功能启用时未能正确执行递归限制，当本地函数包含触发新查询的嵌入JavaScript时，可能导致经过身份验证的攻击者通过链式调用本地和JavaScript函数绕过递归限制，触发无限递归并耗尽服务器内存。
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 ~ 2.2.2 -
surrealdb surrealdb 0 ~ 2.1.5 -
surrealdb surrealdb 0 ~ 2.0.5 -

II. Public POCs for CVE-2025-71393

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III. Intelligence Information for CVE-2025-71393

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Vendor Advisories for CVE-2025-71393 (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-2025-71398 5.8 MEDIUM SurrealDB before 2.2.2 SSRF via HTTP Redirect Bypass
CVE-2025-71390 5.8 MEDIUM SurrealDB before 2.3.6 deny-net Bypass via DNS Resolution
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-674

V. Comments for CVE-2025-71393

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