CVE-2026-35214 | THREATINT

Description

Budibase is an open-source low-code platform. Prior to version 3.33.4, the plugin file upload endpoint (POST /api/plugin/upload) passes the user-supplied filename directly to createTempFolder() without sanitizing path traversal sequences. An attacker with Global Builder privileges can craft a multipart upload with a filename containing ../ to delete arbitrary directories via rmSync and write arbitrary files via tarball extraction to any filesystem path the Node.js process can access. This issue has been patched in version 3.33.4.

PUBLISHED Reserved 2026-04-01 | Published 2026-04-03 | Updated 2026-04-03 | Assigner GitHub_M

HIGH: 8.7CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

< 3.33.4

affected

References

github.com/...dibase/security/advisories/GHSA-2wfh-rcwf-wh23 exploit

github.com/...dibase/security/advisories/GHSA-2wfh-rcwf-wh23

github.com/Budibase/budibase/pull/18240

github.com/...ommit/6344d06d703660fd05995e61d581593c2349c879

github.com/Budibase/budibase/releases/tag/3.33.4

cve.org (CVE-2026-35214)

nvd.nist.gov (CVE-2026-35214)

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