Flowise 2.2.4 - 3.1.4 Missing Authorization via openai-assistants-file/download
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
Flowise versions 2.2.4 through 3.1.4 contain a missing authorization vulnerability in the POST /api/v1/openai-assistants-file/download endpoint that allows unauthenticated attackers to access private files by exploiting the endpoint's inclusion in the global authentication whitelist, which bypasses all session and API key verification. Attackers can supply valid chatflowId, chatId, and fileName identifiers to retrieve files from any chatflow on the instance, including private chatflows belonging to other workspaces or organizations.
Why it matters now
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
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-2026-49346 Flowise 3.1.4 Authentication Bypass via OAuth2 Credential Refresh EndpointPriority 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
Timeline
- 2026-10-02 Threatist record created from CVE-2026-71962
- 2026-10-03 Alias added: GHSA-mf39-7j64-g95c
References
Exploit 1
Advisory 1
More FlowiseAI Flowise vulnerabilities
- 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
Sources
- CVE-2026-71962 · CVE Program
- CVE-2026-71962 · NVD
- FIRST EPSS
- GHSA-mf39-7j64-g95c · GitHub Advisory Database · CC BY 4.0
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