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CVE-2026-24766— NocoDB Vulnerable to Prototype Pollution in Connection Test Endpoint, Leading to DoS

Quick assessment

Affected
nocodb nocodb
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.

NocoDB是nocodb开源的一个 Airtable 替代品。将任何 MySql、PostgreSql、Sql Server、Sqlite 和 MariaDb 转换为智能电子表格。 NocoDB 0.301.0之前版本存在安全漏洞，该漏洞源于/api/v2/meta/connection/test端点存在原型污染，可能导致数据库写入操作失败。

CVSS 4.9 · Medium EPSS 0.41% · P33

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-24766

Vulnerability Information
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Vulnerability Title
NocoDB Vulnerable to Prototype Pollution in Connection Test Endpoint, Leading to DoS
Source: CVE Program / CVE List V5
Vulnerability Description
NocoDB is software for building databases as spreadsheets. Prior to version 0.301.0, an authenticated user with org-level-creator permissions can exploit prototype pollution in the `/api/v2/meta/connection/test` endpoint, causing all database write operations to fail application-wide until server restart. While the pollution technically bypasses SUPER_ADMIN authorization checks, no practical privileged actions can be performed because database operations fail immediately after pollution. Version 0.301.0 patches the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5
Vulnerability Title
NocoDB 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NocoDB是nocodb开源的一个 Airtable 替代品。将任何 MySql、PostgreSql、Sql Server、Sqlite 和 MariaDb 转换为智能电子表格。 NocoDB 0.301.0之前版本存在安全漏洞，该漏洞源于/api/v2/meta/connection/test端点存在原型污染，可能导致数据库写入操作失败。
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
nocodb nocodb < 0.301.0 -

II. Public POCs for CVE-2026-24766

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III. Intelligence Information for CVE-2026-24766

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Same Patch Batch · nocodb · 2026-01-28 · 4 CVEs total

CVE-2026-24767 4.9 MEDIUM NocoDB has Blind SSRF via Unvalidated HEAD Request in uploadViaURL Functionality
CVE-2026-24768 NocoDB has Unvalidated Redirect in Login Flow via continueAfterSignIn Parameter
CVE-2026-24769 NocoDB Vulnerable to Stored Cross-Site Scripting via SVG upload

IV. Related Vulnerabilities

Same product: nocodb
Same vendor: nocodb
Same weakness: CWE-1321

V. Comments for CVE-2026-24766

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