# 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.

- **Severity:** High 8.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Aug 2026
- **Updated:** 13 Aug 2026
- **Also known as:** GHSA-354w-hcpx-6wvw, GHSA-x58f-9m57-qc4m

## 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 (Incomplete List of Disallowed Inputs)

## Which versions are affected by CVE-2026-73484?

It affects 1 product.


Products: 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.

## 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](https://insights.sbomify.com/CVE-2025-71338/): Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API (critical 10.0)
- [CVE-2026-40933](https://insights.sbomify.com/CVE-2026-40933/): Flowise: Authenticated RCE Via MCP Adapters (critical 10.0)
- [CVE-2025-61913](https://insights.sbomify.com/CVE-2025-61913/): Flowise is vulnerable to arbitrary file read, arbitrary file write (critical 10.0)
- [CVE-2025-59528](https://insights.sbomify.com/CVE-2025-59528/): Flowise has Remote Code Execution vulnerability (critical 10.0)
- [CVE-2026-52098](https://insights.sbomify.com/CVE-2026-52098/): Code injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-73484 and fix it if it is affected.

What it is: 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.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73484 exists.

Affected product: Flowiseai Flowise. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-73484/ (Markdown: https://insights.sbomify.com/CVE-2026-73484/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-73484
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-73484
- OSV: https://osv.dev/vulnerability/CVE-2026-73484

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-73484/
Summaries are generated and may contain mistakes; the official description above is the record.