CVE-2025-3248

9.8 CRITICAL CISA KEV - Actively Exploited

Published: April 07, 2025 Modified: November 06, 2025

Description

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/langflow-ai/langflow/pull/6911

Source: disclosure@vulncheck.com

Patch

https://github.com/langflow-ai/langflow/releases/tag/1.3.0

Source: disclosure@vulncheck.com

Release Notes

https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/

Source: disclosure@vulncheck.com

Exploit Third Party Advisory

https://www.vulncheck.com/advisories/langflow-unauthenticated-rce

Source: disclosure@vulncheck.com

Third Party Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

5 reference(s) from NVD

Quick Stats

CVSS v3 Score

9.8 / 10.0

EPSS (Exploit Probability)

91.4%

100th percentile

Exploitation Status

Actively Exploited

Remediation due: 2025-05-26

Weaknesses (CWE)

CWE-306 CWE-94 CWE-306

Affected Vendors

langflow

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