CVE-2026-35214 json
Budibase: Path traversal in plugin file upload enables arbitrary directory deletion and file write
published 2026-04-03 7 mo ago modified 2026-10-06 33 d ago also EUVD-2026-18793 , GHSA-2wfh-rcwf-wh23
- cvss
- 8.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm @budibase/server 3.33.4
- budibase budibase 3.33.4
- github.com/Budibase/budibase@6344d06 commit
- github.com/Budibase/budibase#18240 pull request
- github.com/Budibase/budibase/releases/tag/3.33.4 release
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.56% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/Budibase/budibase/security/advisories/GHSA-2wfh-rcwf-wh23 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H |
| GitHub | 3.1 | 8.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | @budibase/server | <3.33.4 |
3.33.4 |
Affected products
- Budibase budibase
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/Budibase/budibase/pull/18240
web, issue-tracking, patch
-
github.com
/Budibase/budibase/commit/6344d06d703660fd05995e61d581593c2349c879
web, patch
-
github.com
/Budibase/budibase/security/advisories/GHSA-2wfh-rcwf-wh23
exploit, web, mitigation, vendor-advisory
-
github.com
/Budibase/budibase/releases/tag/3.33.4
web, product, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-35214
advisory
-
github.com
/Budibase/budibase
package
Sources
- CVE List CVE-2026-35214
- GitHub Advisory GHSA-2wfh-rcwf-wh23
- NVD CVE-2026-35214
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.