CVE-2025-3248

CRITICAL CISA KEV EPSS 100.0%
Published Apr 7, 20251y ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Apr 7, 2025 1y ago
Last Modified Jun 17, 2026 2w ago
KEV Listed May 5, 2025 1y ago
KEV Due May 26, 2025 401d overdue

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.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
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

Threat Intelligence

CISA Known Exploited Overdue 401d
Added
May 5, 2025
Due
May 26, 2025

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

EPSS Exploit Probability
100.0% percentile
Exploit & Patch Status
Actively Exploited (KEV)
Patch Available

Weaknesses 2

CWE-306 Missing Authentication for Critical Function Authentication
CWE-94 Improper Control of Generation of Code (Code Injection) Injection

Affected Products 1

VendorProductVersionRange
langflowlangflow* <1.3.0

References 5

  • github.com https://github.com/langflow-ai/langflow/pull/6911
    Patch
  • github.com https://github.com/langflow-ai/langflow/releases/tag/1.3.0
    Release Notes
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248
    US Government Resource
  • horizon3.ai https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/
    ExploitThird Party Advisory
  • vulncheck.com https://www.vulncheck.com/advisories/langflow-unauthenticated-rce
    Third Party Advisory

Remediation

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