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CVE-2026-4502

Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API

Published: Apr 30, 2026Updated: May 11, 2026 Sources: CVE List NVDCWE-22
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.3%
Top 80.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to write arbitrary files on the system.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-22

Affected Products

Langflow DesktopIBM
On-prem
Enterprise Software / itsm-monitoring
langflow desktoplangflow
SaaS
AI / ML / ai-agent-tooling
ibmcommercialUSEnterprise Softwareaka international business machines
langflowcommercialAI / MLaka langflow-base, langflow desktop, langflow

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://www.ibm.com/support/pages/node/7271097
ibm.com

Timeline

Published
Apr 30, 2026
Last Updated
May 11, 2026

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