๐Ÿ›ก๏ธ CVE-2026-42048
๐Ÿ”ด CVSS 9.6 โ€” Critical โœ… No Known Exploit CWE-22 NVD
9.6
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity CRITICAL
CVSS Score 9.6
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
CWE CWE-22
Public Exploit โœ… No
Source NVD
Published 2026-05-05
Updated 2026-06-15
Modified 2026-05-13
Fix URL N/A

Affected Packages

Software From version Fixed in
langflow โ€” 1.9.0
unknown โ€” โ€”

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