Flowise Authorization Bypass via Spoofed x-request-from Header
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.0.13, Flowise trusts any HTTP client that sets the header x-request-from: internal, allowing an authenticated tenant session to bypass all /api/v1/** authorization checks. With only a browser cookie, a low-privilege tenant can invoke internal administration endpoints (API key management, credential stores, custom function execution, etc.), effectively escalating privilege. This issue has been patched in version 3.0.13.
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| FlowiseAI | Flowise | before 3.0.13 | 3.0.13 | Patch available | CNA |
| — | flowise (npm) | before 3.0.13 | 3.0.13 | Patch available | GHSA-wvhq-wp8g-c7vq |
- Flowise VendorFlowiseAI Affected before 3.0.13 Fixed in 3.0.13 Patch available CNA
- flowise (npm) Vendor— Affected before 3.0.13 Fixed in 3.0.13 Patch available GHSA-wvhq-wp8g-c7vq
Remediation
- Fix · CNA Flowise (FlowiseAI) Fixed in 3.0.13
- Fix · GHSA-wvhq-wp8g-c7vq flowise (npm) Fixed in 3.0.13 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-30820
- 2026-10-03 Alias added: GHSA-wvhq-wp8g-c7vq
- 2026-10-20 EPSS moved to the 50th–90th percentile
- 2026-10-25 EPSS moved to the below the 50th percentile
References
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-2026-30820 · CVE Program
- CVE-2026-30820 · NVD
- FIRST EPSS
- GHSA-wvhq-wp8g-c7vq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences