CVE-2026-72850

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.

• CWE-22

• https://github.com/Budibase/budibase/security/advisories/GHSA-pxwc-66g3-5f27
• https://www.vulncheck.com/advisories/budibase-before-arbitrary-file-write-via-path-traversal
• https://github.com/Budibase/budibase/security/advisories/GHSA-pxwc-66g3-5f27

Published

Aug 13, 2026

Last Modified

Aug 31, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

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