CVE-2026-73484 Flowise before 3.1.3 Sandbox Escape via Pandas Methods
Authenticated attackers can escape the Python sandbox in Flowise to exfiltrate CSV data or write arbitrary files to the server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73484?
CVE-2026-73484 is a high-severity code injection vulnerability in Flowiseai Flowise, published on 13 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Flowise before 3.1.3 contains a sandbox escape vulnerability in pythonCodeValidator.ts that fails to block native Pandas DataFrame methods like to_csv, to_json, pipe, and query. Authenticated attackers can exploit this to exfiltrate uploaded CSV data or write arbitrary files to the server filesystem.
Weakness: CWE-184
Which versions are affected by CVE-2026-73484?
It affects 1 product.
Products include Flowiseai Flowise.
How do I fix CVE-2026-73484?
No fix has been published for CVE-2026-73484 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-73484 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73484 exists.
Other vulnerabilities in Flowiseai Flowise
- CVE-2025-71338 Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API
- CVE-2026-40933 Flowise: Authenticated RCE Via MCP Adapters
- CVE-2025-61913 Flowise is vulnerable to arbitrary file read, arbitrary file write
- CVE-2025-59528 Flowise has Remote Code Execution vulnerability
- CVE-2026-52098 Code injection in n/a
Sources
Also known as GHSA-354w-hcpx-6wvw, GHSA-x58f-9m57-qc4m.