CVE-2026-41266: Flowise Sensitive Data Leak in Chatbot Config

# CVE-2026-41266: Flowise Sensitive Data Leak in Chatbot Config

https://gcdradar.vercel.app/incidents/cve-2026-41266-flowise-sensitive-data-leak-in-chatbot-config · AIR-2026-0581 · closed 2026-04-16

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-04-16
- AI role: Attack on AI
- Products: Flowise
- CVE ids: CVE-2026-41266
- CVSS: 7.7

## Summary

An unauthenticated endpoint in Flowise exposes sensitive configuration data, including API keys and HTTP headers. Attackers possessing a chatflow UUID can retrieve these credentials.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-04-23: CVE-2026-41266: Flowise is a drag & drop user interface to build a customized large language model flow. (https://nvd.nist.gov/vuln/detail/CVE-2026-41266)
- 2026-04-16: CVE-2026-41266: Flowise: Sensitive Data Leak in public-chatbotConfig  (https://github.com/advisories/GHSA-4jpm-cgx2-8h37)

## Sources

- 2026-04-16 GitHub Advisory Database: CVE-2026-41266: Flowise: Sensitive Data Leak in public-chatbotConfig  https://github.com/advisories/GHSA-4jpm-cgx2-8h37
- 2026-04-23 NVD: CVE-2026-41266: Flowise is a drag & drop user interface to build a customized large language model flow. https://nvd.nist.gov/vuln/detail/CVE-2026-41266

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.