Code Injection in Flowise - CVE-2026-41137
Published: May 4, 2026
Vulnerability identifier: #VU129621
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2026-41137
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: FlowiseAI
Affected software:
Flowise
Flowise
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to improper control of code generation in CSVAgent when processing a user-supplied custom Pandas CSV read code value. A remote user can send a specially crafted request that defines a malicious chatflow and triggers its execution to execute arbitrary code.
If instance credentials are not configured, authentication can be bypassed by supplying the x-request-from: internal header.
How to mitigate CVE-2026-41137
Install security update from vendor's website.