---
title: "CVE-2026-73487: Flowise Prompt Injection to RCE and SSRF via CSV/Airtable Agent Python Validator Bypass"
url: https://erroneo.us/security/cve/CVE-2026-73487/
description: "CVE-2026-73487 (flowise (npm)): Flowise before 3.1.3 contains a regex-based Python code validator bypass in CSV and Airtable Agent nodes that allows…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-08-13
date_modified: 2026-10-07
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-73487"
kev: false
cvss: 9
epss: 0.00961
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-73487: Flowise Prompt Injection to RCE and SSRF via CSV/Airtable Agent Python Validator Bypass

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 1.0% , percentile 61: FIRST’s model estimates a 1.0% chance of exploitation activity in the next 30 days, higher than 61% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes flowise (npm) <= 3.1.2, fixed in 3.1.3 ; flowise-components (npm) <= 3.1.2, fixed in 3.1.3 . Check your lockfile, including transitive dependencies.

## What it is

Flowise before 3.1.3 contains a regex-based Python code validator bypass in CSV and Airtable Agent nodes that allows unauthenticated attackers to inject malicious code via prompt injection. Attackers can exploit unblocked pandas functions like pd.readjson() to exfiltrate datasets, perform SSRF against internal services, or achieve code execution through the unauthenticated prediction API.

## Affected packages

- npm `flowise` <= 3.1.2 → fixed: 3.1.3
- npm `flowise-components` <= 3.1.2 → fixed: 3.1.3

## Affected products (CVE record)

- FlowiseAI Flowise: < 3.1.3
- FlowiseAI Flowise: < 3.1.3

## Severity

- VulnCheck CVSS 4.0: 9 `CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N`
- GitHub CVSS 4.0: 9.0 `CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.96% probability of exploitation activity in the next 30 days; percentile 61.

## Sources

- [GitHub Security Advisory (GHSA-w7x8-q2gp-5cgg)](https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-w7x8-q2gp-5cgg)
- [GitHub Advisory GHSA-w7x8-q2gp-5cgg](https://github.com/advisories/GHSA-w7x8-q2gp-5cgg)
- [CVE.org record CVE-2026-73487](https://www.cve.org/CVERecord?id=CVE-2026-73487)
- [NVD entry CVE-2026-73487](https://nvd.nist.gov/vuln/detail/CVE-2026-73487)
- [VulnCheck Advisory: Flowise before 3.1.3 Prompt Injection RCE via CSV Agent](https://www.vulncheck.com/advisories/flowise-before-prompt-injection-rce-via-csv-agent)

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Source page: https://erroneo.us/security/cve/CVE-2026-73487/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt