langflow-ai langflow Project Creation Endpoint projects.py encrypt_auth_settings cleartext storage in file
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-312.
Summary
A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. The affected element is the function create_project/encrypt_auth_settings of the file src/backend/base/Langflow/api/v1/projects.py of the component Project Creation Endpoint. Such manipulation of the argument auth_settings leads to cleartext storage in a file or on disk. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
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 |
|---|---|---|---|---|---|
| Langflow | langflow | 1.8.0; 1.8.1; 1.8.2; 1.8.3 | — | No fix listed | CNA |
| — | langflow (PyPI) | before 1.9.1 | 1.9.1 | Patch available | GHSA-9jpj-cph8-w449 |
- langflow VendorLangflow Affected 1.8.0; 1.8.1; 1.8.2; 1.8.3 Fixed in — No fix listed CNA
- langflow (PyPI) Vendor— Affected before 1.9.1 Fixed in 1.9.1 Patch available GHSA-9jpj-cph8-w449
Remediation
- Fix · GHSA-9jpj-cph8-w449 langflow (PyPI) Fixed in 1.9.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-6598
- 2026-10-03 Alias added: GHSA-9jpj-cph8-w449
References
More Langflow vulnerabilities
- TI-2026-08085 Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation KEVCVSS 3.1CRITICAL 9.8
- TI-2026-00553 Langflow exec_globals Inclusion of Functionality from Untrusted Control Sphere Remote… KEVCVSS 3.0CRITICAL 9.8
- TI-2025-24427 Langflow <= 1.6.9 CORS Misconfiguration to Token Hijack & RCE KEVCVSS 4.0CRITICAL 9.4
- TI-2025-02845 Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code KEVCVSS 3.1CRITICAL 9.8
- TI-2026-25463 Langflow has Unauthenticated Remote Code Execution via Public Flow Build Endpoint KEVCVSS 4.0CRITICAL 9.3
- TI-2026-39928 Authorization bypass in langflow KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-6598 · CVE Program
- CVE-2026-6598 · NVD
- FIRST EPSS
- GHSA-9jpj-cph8-w449 · 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