CVE-2025-3248

Published: Apr 7, 2025

Modified: Nov 29, 2025

PUBLISHED

CVSS v3.1

9.8

CRITICAL

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.

Vendor	Product	Versions
langflow-ai	langflow	affected `0 - < 1.3.0`

Weaknesses (CWE)

CWE-306

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

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

patch

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

release-notes

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

exploit

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

third-party-advisory

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CVE-2025-3248

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References