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CVE-2026-82239— Budibase before 3.41.3 Authorization Bypass via datasources/query

Quick assessment

Affected
budibase server
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.

在 Budibase 3.41.3 之前的版本中，POST /api/datasources/query 接口未能正确执行基于表的角色限制，导致拥有较低权限的 BASIC 角色用户可以无视已配置的数据权限，读取、创建、更新或删除任意表中的数据。拥有 BASIC 角色的攻击者可以通过提交包含目标表标识符的构造查询请求，绕过表级访问控制，从而操作受限数据。

CVSS 8.1 · High

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services
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I. Basic Information for CVE-2026-82239

Vulnerability Information
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Vulnerability Title
Budibase before 3.41.3 Authorization Bypass via datasources/query
Source: CVE Program / CVE List V5
Vulnerability Description
Budibase before 3.41.3 fails to enforce per-table role restrictions on the POST /api/datasources/query endpoint, allowing low-privilege BASIC users to read, create, update, or delete rows in any table regardless of configured permissions. Attackers with BASIC role can submit crafted query requests with target table identifiers to bypass table-level access controls and manipulate restricted data.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
budibase server 0 ~ 3.41.3 -

II. Public POCs for CVE-2026-82239

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III. Intelligence Information for CVE-2026-82239

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Vendor Advisories for CVE-2026-82239 (2)

Same Patch Batch · budibase · 2026-08-28 · 8 CVEs total

CVE-2026-82244 9.1 CRITICAL Budibase before 3.41.3 Remote Code Execution via Plugin eval()
CVE-2026-82240 8.1 HIGH Budibase before 3.41.3 Privilege Escalation via User Update API
CVE-2026-82245 8.1 HIGH Budibase before 3.41.3 Missing Authorization License Management
CVE-2026-82242 7.7 HIGH Budibase before 3.41.3 Cross-Application Resource Injection via Missing Authorization
CVE-2026-82243 7.6 HIGH Budibase Server before 3.41.3 SSRF with Credential Leakage
CVE-2026-82246 7.1 HIGH Budibase Server before 3.41.3 SSRF via Query Import
CVE-2026-82241 7.1 HIGH Budibase backend-core SSRF via incomplete default blacklist

IV. Related Vulnerabilities

Same product: server
Same vendor: budibase
Same weakness: CWE-862

V. Comments for CVE-2026-82239

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