Flowise before 3.1.4 SSRF and API Key Exfiltration via Chat Model Nodes
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Flowise before 3.1.4 fails to validate baseURL parameters in chat-model nodes, allowing authenticated users to redirect requests to arbitrary hosts. Attackers with chatflows:create or chatflows:update permissions can exfiltrate LLM provider API keys by redirecting requests to cloud metadata services or internal hosts.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Flowise (FlowiseAI) Fixed in 3.1.4
- Fix · CNA Flowise (FlowiseAI) Fixed in 3.1.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
FlowiseAI Flowise 3.1.4
10 records Highest priority Priority HIGH 5 HIGH, 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-62067 Flowise before 3.1.4 Remote Code Execution via cwd ParameterPriority HIGH 74
- TI-2026-62066 Flowise before 3.1.4 Remote Code Execution via Custom MCP npxPriority HIGH 74
- TI-2026-62071 Flowise before 3.1.4 Script Injection via Docker WorkflowsPriority HIGH 69
Timeline
- 2026-10-02 Threatist record created from CVE-2026-91935
- 2026-10-03 Alias added: GHSA-53c2-xvwj-6727
References
More FlowiseAI 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-2026-91935 · CVE Program
- CVE-2026-91935 · NVD
- FIRST EPSS
- GHSA-53c2-xvwj-6727 · GitHub Advisory Database · CC BY 4.0
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