Path traversal in Flowise - CVE-2026-91934
Published: September 1, 2026 / Updated: September 16, 2026
Vulnerability identifier: #VU146550
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-91934
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to path traversal in the Sql Database Chain node when accepting a user-supplied sqlite file path. A remote user can supply a crafted sqlite database path and trigger processing of attacker-controlled database content to execute arbitrary code.
Exploitation was demonstrated against the published Docker image and relied on writing a crafted sqlite database file into /etc/chromium so it would later be sourced by chromium as a shell script.
Affected software
Flowise
How to mitigate CVE-2026-91934
Install security update from vendor's website.
Flowise - update to 3.1.4