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TI-2026-49346 Aliases CVE-2026-70636GHSA-rm9r-9424-cccf

Flowise 3.1.4 Authentication Bypass via OAuth2 Credential Refresh Endpoint

Priority HIGH 77CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00663 51st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FlowiseAIFlowiseup to 3.1.4—No fix listedCNA
  • Flowise VendorFlowiseAI Affected up to 3.1.4 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*up to 3.1.4VulnerableFlowiseAI
  • cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:* Versions up to 3.1.4 Vulnerable ·FlowiseAI

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    FlowiseAI Flowise — flowiseai.com/sunset

    5 records Highest priority Priority HIGH 4 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2026-50257 Flowise 2.2.4 - 3.1.4 Missing Authorization via openai-assistants-file/downloadPriority HIGH 77
    • TI-2026-47775 Flowise 3.1.4 IDOR in OpenAI Assistants IntegrationPriority HIGH 72
    • TI-2026-47774 Flowise 3.1.4 Missing Authorization on Document Store Mutation EndpointsPriority HIGH 65
    Show all 5 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-70636
  2. 2026-10-03 Alias added: GHSA-rm9r-9424-cccf
  3. 2026-10-06 EPSS moved to the 50th–90th percentile

References

Exploit 1

Advisory 1

  • TI-2025-37059 Flowise has Remote Code Execution vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2025-36193 Flowise Cloud and Local Deployments have Unauthenticated Password Reset Token Disclosure that Leads to Account Takeover CVSS 3.1CRITICAL 9.8
  • TI-2025-08190 Unsupervised OS command execution leads to remote code execution by unauthenticated network attackers CVSS 3.1CRITICAL 9.8
  • TI-2026-51595 Flowise before 3.1.3 Sandbox Escape via Puppeteer CVSS 4.0CRITICAL 9.4
  • TI-2026-49250 Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability CVSS 4.0CRITICAL 9.5
  • TI-2025-43459 Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API CVSS 4.0CRITICAL 10.0
See all 127 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences