CVE-2026-7869

IBM Langflow OSS 1.0.0 through 1.10.3 is vulnerable to Path Traversal in the Knowledge Bases API (`POST /api/v1/knowledge_bases`). This occurs because user-supplied knowledge base names are used directly to create file paths without proper sanitization or containment checks. An authenticated attacker can exploit this flaw to create directories and write files anywhere on the server's filesystem.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.ibm.com/support/pages/node/7282647	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-08-05 19:17

Updated : 2026-08-06 19:00

NVD link : CVE-2026-7869

Mitre link : CVE-2026-7869

CVE.ORG link : CVE-2026-7869

JSON object : View

Products Affected

langflow

langflow

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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