High severity8.8NVD Advisory· Published Sep 26, 2026

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.

Affected products

Budibase/Budibasellm-fuzzy
Range: <3.45.0

Patches

Vulnerability mechanics

References

github.com/Budibase/budibase/security/advisories/GHSA-37r6-5jxh-vm83nvd
www.vulncheck.com/advisories/budibase-server-before-3.45.0-arbitrary-file-write-via-zip-symlinknvd

News mentions

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cvss	0.572
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000