CVE-2026-4502
Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-22 |
| Vendor | ibm |
| Product | langflow desktop |
| Published | Apr 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
IBM / Langflow Desktop
1.2.0 ≤ 1.8.4