P4Verified

CVE-2026-72850: server 0 to before 3.40.0

CVE-2026-72850. CVSS 3.1 base score 9.1 (CRITICAL, Vendor/CNA). EPSS 0.00605 (percentile 0.47207), scored 2026-10-06.

Affected technology

server · 0 to before 3.40.0
budibase

Description’s affected range: before 3.40.0 fails to properly sanitize S3 object keys

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · High privileges required · No user interaction required

What an attacker can do

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. Vendor/CNA’s CVSS 4.0 assessment (base score 9.4/10) rates confidentiality, integrity and availability impact as high.

Published 2026-10-08 17:34:44.885670+00:00

CWE: CWE-22
CCR priority: 36.6 /100 (P4)
CVSS 3.1: 9.1 /10 · CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H · Vendor/CNA
EPSS: 0.00605 · percentile 0.47316 · 2026-10-08
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-08 17:36:22.845483+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-08 17:32:11.049884+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-72850.html