CVE-2026-42867

Katalog CVE

CVSS 6.5 · Medium EPSS 0,47%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada langflow. Skor CVSS 3.1 6.5 (Medium) menurut github.com.

Deskripsi (NVD)

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 (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. This vulnerability is fixed in 1.9.0.

Rincian

Terbit di NVD

23 Juni 2026

Terakhir diubah

26 Juni 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

0,47% peluang dieksploitasi; lebih tinggi dari 38,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/langflow-ai/langflow/security/advisories/GHSA-79ph-745m-6wxq exploit · advisory vendor
• https://github.com/langflow-ai/langflow/pull/12337 patch · issue tracking