CVE-2025-3248 CRITICAL

CVE-2025-3248: Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code

Vendor Langflow-Ai
Product langflow
Weakness CWE-306 · Missing auth
KEV Status Known Exploited
Published April 7, 2025
Last update November 29, 2025
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Langflow versions prior to 1.3.0 are susceptible to code injection in the /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary code.

CISA mandated remediation

02CISA Required Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Key dates

03Disclosure timeline

April 7, 2025 CVE published
November 29, 2025 Record updated