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CVE-2026-100680— Budibase before 3.45.0 Arbitrary Local File Read via OpenAPI Import

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.

Budibase 3.45.0 之前的版本未能在 OpenAPI/Swagger 导入验证器中禁用外部 JSON 引用解析功能，使得拥有验证权限的构建者（builder）能够读取任意本地文件。具有构建者权限的攻击者可以在提交到导入端点的 OpenAPI 规范中嵌入 引用，从而外泄敏感文件，包括包含 JWT 密钥、API 密钥和数据库凭据的环境变量。

CVSS 8.1 · High EPSS 0.23% · P13
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I. Basic Information for CVE-2026-100680

Vulnerability Information
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Vulnerability Title
Budibase before 3.45.0 Arbitrary Local File Read via OpenAPI Import
Source: CVE Program / CVE List V5
Vulnerability Description
Budibase versions before 3.45.0 fail to disable external JSON reference resolution in the OpenAPI/Swagger import validator, allowing authenticated builders to read arbitrary local files. Attackers with builder access can embed file:// references in OpenAPI specifications submitted to the import endpoint to exfiltrate sensitive files including environment variables containing JWT secrets, API keys, and database credentials.
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
信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
budibase server 0 ~ 3.45.0 -

II. Public POCs for CVE-2026-100680

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III. Intelligence Information for CVE-2026-100680

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Vendor Advisories for CVE-2026-100680 (1)

Other References for CVE-2026-100680 (1)

Same Patch Batch · budibase · 2026-09-26 · 9 CVEs total

CVE-2026-100682 8.8 HIGH Budibase Server before 3.45.0 Arbitrary File Write via ZIP Symlink
CVE-2026-100686 8.1 HIGH Budibase before 3.45.0 Cross-Workspace Privilege Escalation via POST /api/global/groups/:g
CVE-2026-100684 8.1 HIGH Budibase Server 3.41.0 before 3.45.0 Authentication Bypass via OIDC
CVE-2026-100683 8.0 HIGH Budibase before 3.45.0 SQL Injection via column-rename DDL
CVE-2026-100685 7.7 HIGH Budibase before 3.45.0 Information Disclosure via Chat Links
CVE-2026-100688 6.5 MEDIUM Budibase server before 3.45.0 Cross-Tenant Information Disclosure
CVE-2026-100687 5.5 MEDIUM Budibase Server before 3.45.0 Credential Exposure via External Table Broadcast
CVE-2026-100681 5.4 MEDIUM Budibase before 3.45.0 SSRF and OAuth Token Exfiltration via Teams Webhook

IV. Related Vulnerabilities

Same product: server
Same vendor: budibase
Same weakness: CWE-200

V. Comments for CVE-2026-100680

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