CVE-2026-35214 Budibase: Path traversal in plugin file upload enables arbitrary directory deletion and file write
Attackers with Global Builder privileges can exploit path traversal in plugin uploads to delete directories or write arbitrary files, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-35214?
CVE-2026-35214 is a high-severity path traversal vulnerability in budibase, published on 3 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-22
Which versions are affected by CVE-2026-35214?
2 open source packages ship an affected version, including @budibase/server. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
@budibase/server npm | All versions | 3.33.4 |
@budibase/server npm | All versions | 3.33.4 |
Products include Budibase Budibase.
How do I fix CVE-2026-35214?
Upgrade @budibase/server to 3.33.4 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-35214 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35214 exists.
Other vulnerabilities in budibase
- CVE-2026-54350 Budibase: Anonymous NoSQL operator injection via published-app query templates
- CVE-2026-27702 Budibase Vulnerable to Remote Code Execution via Unsafe eval() in View Filter Map Function (Budibase Cloud)
- CVE-2026-54352 Budibase: Arbitrary file read by workspace-builder via PWA-zip symlink upload
- CVE-2026-31818 Budibase: Server-Side Request Forgery via REST Connector with Empty Default Blacklist
- CVE-2026-30240 Budibase PWA ZIP Upload Path Traversal Allows Reading Arbitrary Server Files Including All Environment Secrets
Sources
Also known as GHSA-2wfh-rcwf-wh23.