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CVE-2025-3248

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

Published: Apr 7, 2025Updated: Nov 6, 2025 Sources: CVE List NVD GHSA BDUCWE-306
9.8CRITICAL
NVD MITRE
EPSS Score
100.0%
Top 0.0%
CISA KEV
Active Exploitation
Since May 5, 2025
Exploits
2 Known
Remediation
Patch Available
Self-Check
Nuclei · OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-306CWE-94

Affected Products

PyPI
package-ecosystem
langflow
OSS Libraries
langflow-base
OSS Libraries
Сообщество свободного программного обеспечения
oss-projectaka fsf
LangflowOn-prem
OSS Libraries / generic-library
langflow
commercialaka langflow desktop, langflow-base
langflowSaaS
AI / ML / ai-agent-tooling
langflow-ai
commercial
langflowSaaS
AI / ML

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:May 5, 2025
Remediation due:May 26, 2025

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.

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

https://horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/&#13;
horizon3.ai
https://github.com/langflow-ai/langflow/pull/6911
github.com
https://github.com/langflow-ai/langflow/releases/tag/1.3.0&#13;
github.com
and 10 more references View all →
News mentions
2

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