CVE-2025-3248 — Langflow Missing Authentication Vulnerability
CVE-2025-3248: Langflow Missing Authentication Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Langflow |
| Product | Langflow |
| Date added | 2025-05-05 |
| Due date | 2025-05-26 |
| Ransomware campaign use | Known |
Description
Langflow contains a missing authentication vulnerability in the /api/v1/validate/code endpoint that allows a remote, unauthenticated attacker to execute arbitrary code via crafted HTTP requests.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
This vulnerability affects a common open-source project, third-party library, or a protocol used by different products. For more information, please see: https://github.com/advisories/GHSA-c995-4fw3-j39m ; https://nvd.nist.gov/vuln/detail/CVE-2025-3248
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-3248
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog