CVE-2026-100682

Description

Budibase Server before 3.45.0 contains an arbitrary file write vulnerability in the PWA icon upload endpoint that extracts user-supplied ZIP archives without proper symlink validation. Attackers with BUILDER role can craft a malicious ZIP with leaf symlink entries followed by duplicate file entries to write arbitrary files as root, enabling remote code execution.

CVSS Vector

References

• https://github.com/Budibase/budibase/security/advisories/GHSA-37r6-5jxh-vm83
• https://www.vulncheck.com/advisories/budibase-server-before-3.45.0-arbitrary-file-write-via-zip-symlink