CVE-2025-3248

Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code

Published Apr 7, 2025 CVSS 3.1 · 9.8 Critical EPSS 100.0% KEV · Listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-rvqx-wpfh-mfx7 Langflow Unauth RCE
History
Type Values Removed Values Added
Title Langflow Unauth RCE Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code
Type Values Removed Values Added
Metrics epss

{'score': 0.92736}

epss

{'score': 0.93081}

Type Values Removed Values Added
First Time appeared Langflow
Langflow langflow
Weaknesses CWE-94
CPEs cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*
Vendors & Products Langflow
Langflow langflow
Type Values Removed Values Added
Metrics kev

{'dateAdded': '2025-05-05'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Langflow Unauth RCE
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 8, 2026, 2:00 PM
Reserved
Apr 4, 2025, 12:58 AM
Status
Analyzed
Published
Apr 7, 2025, 3:15 PM
Modified
Oct 8, 2026, 4:16 PM