CVE-2026-35216 in the critical feed json
Budibase: Unauthenticated Remote Code Execution via Webhook Trigger and Bash Automation Step
published 2026-04-03 7 mo ago modified 2026-10-06 33 d ago also EUVD-2026-18795 , GHSA-fcm4-4pj2-m5hf
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 10.9%
- EPSS 10.9% chance of exploitation in 30 days, percentile 95%
- public exploits
- 0
- none known
Summary
Budibase is an open-source low-code platform. Prior to version 3.33.4, an unauthenticated attacker can achieve Remote Code Execution (RCE) on the Budibase server by triggering an automation that contains a Bash step via the public webhook endpoint. No authentication is required to trigger the exploit. The process executes as root inside the container. 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@f0c731b commit
- github.com/Budibase/budibase#18238 pull request
- github.com/Budibase/budibase/releases/tag/3.33.4 release
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
10.90% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/Budibase/budibase/security/advisories/GHSA-fcm4-4pj2-m5hf referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
| GitHub | 3.1 | 9.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/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-78 Improper Neutralization of Special Elements used in an OS Command
References
-
github.com
/Budibase/budibase/pull/18238
web, issue-tracking, patch
-
github.com
/Budibase/budibase/commit/f0c731b409a96e401445a6a6030d2994ff4ac256
web, patch
-
github.com
/Budibase/budibase/security/advisories/GHSA-fcm4-4pj2-m5hf
exploit, web, vendor-advisory
-
github.com
/Budibase/budibase/releases/tag/3.33.4
web, product, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-35216
advisory
-
github.com
/Budibase/budibase
package
Sources
- CVE List CVE-2026-35216
- GitHub Advisory GHSA-fcm4-4pj2-m5hf
- NVD CVE-2026-35216
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.