CVE-2026-72850Budibase before 3.40.0 Arbitrary File Write via Path Traversal
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Budibase before 3.40.0 fails to properly sanitize S3 object keys, allowing authenticated builders to upload files with traversal sequences that are preserved during export. Attackers can craft filenames containing .. segments that escape the temporary directory during workspace export, writing arbitrary content to any path writable by the Budibase process.
- CVSS
- 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
budibase server budibase:server (from the name) | before 3.40.0; 3.40.0 not affected | CNA record |
References
- https://github.com/Budibase/budibase/security/advisories/GHSA-pxwc-66g3-5f27vendor-advisory
- https://www.vulncheck.com/advisories/budibase-before-arbitrary-file-write-via-path-traversalthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.