CVE-2026-70474: Flowise Cross-Workspace OAuth2 Credential Metadata Leak

# CVE-2026-70474: Flowise Cross-Workspace OAuth2 Credential Metadata Leak

https://gcdradar.vercel.app/incidents/cve-2026-70474-flowise-cross-workspace-oauth2-credential-met · AIR-2026-0894 · closed 2026-08-04

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-08-04
- AI role: Attack on AI
- Products: Flowise
- CVE ids: CVE-2026-70474
- CVSS: 7.6

## Summary

An unauthenticated vulnerability in Flowise allows attackers to access and overwrite OAuth2 credentials across workspaces due to missing authorization checks. A patch has been released by the vendor.

## What to do

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

## Latest updates

- 2026-08-04: CVE-2026-70474: Flowise is a drag-and-drop user interface for building customized large language model (LLM) flows. (https://nvd.nist.gov/vuln/detail/CVE-2026-70474)
- 2026-08-04: CVE-2026-70474: Flowise: Cross-Workspace OAuth2 Credential Metadata Leak (https://github.com/advisories/GHSA-wch5-xp77-fxg4)

## Sources

- 2026-08-04 GitHub Advisory Database: CVE-2026-70474: Flowise: Cross-Workspace OAuth2 Credential Metadata Leak https://github.com/advisories/GHSA-wch5-xp77-fxg4
- 2026-08-04 NVD: CVE-2026-70474: Flowise is a drag-and-drop user interface for building customized large language model (LLM) flows. https://nvd.nist.gov/vuln/detail/CVE-2026-70474

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