What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-26 · updated 2026-10-08
• Weakness: CWE-200

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.

Affected products

• budibase server: before 3.45.0 — fixed in 3.45.0

How to fix

Upgrade to a fixed version: budibase server 3.45.0. Check the vendor advisory for mitigations.

References

• https://github.com/Budibase/budibase/security/advisories/GHSA-8xr5-pggf-26jq
• https://www.vulncheck.com/advisories/budibase-before-3.45.0-arbitrary-local-file-read-via-openapi-import
• https://github.com/Budibase/budibase/security/advisories/GHSA-8xr5-pggf-26jq

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