---
id: CVE-2026-100680
title: >-
  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
summary: >-
  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:// re…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-200
vendor: budibase
product: server
affected:
  - server < 3.45.0
published: '2026-09-26'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T14:16:52.150'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100680'
references:
  - url: >-
      https://github.com/Budibase/budibase/security/advisories/GHSA-8xr5-pggf-26jq
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/budibase-before-3.45.0-arbitrary-local-file-read-via-openapi-import
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-26T13:33:20.908Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.