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Vulnerability record · CVE-2026-100680 · published 26 September 2026

CVE-2026-100680: Information exposure vulnerability

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.

8.6 CVSS 4.0 High EPSS 0.23% · top 87.2% CWE-200 · Information exposure Deferred
8.6CVSS 4.0 base score
0.23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
28 Sep 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
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

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Source: NIST National Vulnerability Database (record CVE-2026-100680), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.