langflow-ai langflow Flow Using API core.py has_api_terms credentials storage
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-256.
Summary
A weakness has been identified in langflow-ai langflow up to 1.8.3. Impacted is the function remove_api_keys/has_api_terms of the file src/backend/base/langflow/api/utils/core.py of the component Flow Using API. This manipulation causes unprotected storage of credentials. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. 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) | up to 1.8.3 | — | No fix listed | GHSA-5jjf-wcvf-923w |
- 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 up to 1.8.3 Fixed in — No fix listed GHSA-5jjf-wcvf-923w
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-6597
- 2026-10-03 Alias added: GHSA-5jjf-wcvf-923w
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-2026-6597 · CVE Program
- CVE-2026-6597 · NVD
- FIRST EPSS
- GHSA-5jjf-wcvf-923w · 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