Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow is vulnerable to Path Traversal in the Knowledge Bases API (DELETE /api/v1/knowledge_bases). This occurs because user-supplied knowledge base names are concatenated directly into file paths without proper sanitization or boundary validation. An authenticated attacker can exploit this flaw to delete arbitrary directories anywhere on the server's filesystem, leading to data loss and potential service disruption. This vulnerability is fixed in 1.9.0.
Metrics
Affected Vendors & Products
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History
Wed, 13 May 2026 15:15:00 +0000
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ssvc
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Wed, 13 May 2026 10:00:00 +0000
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Langflow
Langflow langflow |
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Langflow
Langflow langflow |
Tue, 12 May 2026 18:15:00 +0000
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| Description | Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow is vulnerable to Path Traversal in the Knowledge Bases API (DELETE /api/v1/knowledge_bases). This occurs because user-supplied knowledge base names are concatenated directly into file paths without proper sanitization or boundary validation. An authenticated attacker can exploit this flaw to delete arbitrary directories anywhere on the server's filesystem, leading to data loss and potential service disruption. This vulnerability is fixed in 1.9.0. | |
| Title | Langflow: Path Traversal in Langflow Knowledge Bases API | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-05-12T17:35:27.688Z
Updated: 2026-05-13T14:14:16.193Z
Reserved: 2026-04-23T16:05:01.709Z
Link: CVE-2026-42048
Updated: 2026-05-13T14:14:01.068Z
Status : Received
Published: 2026-05-12T18:17:23.780
Modified: 2026-05-12T18:17:23.780
Link: CVE-2026-42048
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