IBM Langflow OSS 1.0.0-1.10.1 Dir Traversal via dotdot URL
CVE-2026-12942 Published on July 30, 2026
Langflow is affected by path traversal due to multiple unauthenticated and insufficiently authorized API endpoints
IBM Langflow OSS 1.0.0 through 1.10.1 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot " sequences ( /.. /) to view arbitrary files on the system.
Vulnerability Analysis
CVE-2026-12942 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and 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-2026-12942 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-12942
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Affected Versions
IBM Langflow OSS:- Version 1.0.0, <= 1.10.1 is affected.