AUGUST 16, 2026
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Case File

CVE-2026-70636

HIGH · CVSS 7.5 EPSS 0.37% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-06 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

An authentication bypass vulnerability in Flowise versions up to 3.1.4 allows unauthenticated attackers to access the OAuth2 credential refresh endpoint, enabling them to perform unauthorized token rotations for any workspace. This could disrupt OAuth integrations and compromise sensitive data. Organizations using Flowise should prioritize patching this vulnerability to mitigate potential security risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-70636
Severity
HIGH
CVSS
7.5
EPSS
0.37%

Original NVD Description

Flowise through 3.1.4 contains an authentication bypass vulnerability that allows unauthenticated attackers to access the OAuth2 credential refresh endpoint by exploiting prefix-based whitelist matching in the authentication middleware defined in packages/server/src/utils/constants.ts. Attackers can send a POST request to the oauth2-credential refresh route with a trailing credential identifier to bypass all authentication and authorization checks, triggering unauthorized OAuth token rotation against credentials belonging to any workspace and potentially disrupting dependent OAuth integrations. This is a bypass of CVE-2026-41273.