IBM Langflow Desktop 1.2.0-1.8.4: Authenticated Directory Traversal via URL
CVE-2026-4502 Published on April 30, 2026
Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API
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.
Vulnerability Analysis
CVE-2026-4502 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.
Weakness Type
What is a Directory traversal Vulnerability?
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CVE-2026-4502 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-4502
Want to know whenever a new CVE is published for IBM Langflow Desktop? stack.watch will email you.
Affected Versions
IBM Langflow Desktop:- Version 1.2.0, <= 1.8.4 is affected.