csirt@kutim:~/threat-intel/cve/CVE-2026-9135

Katalog CVE

CVSS 9.9 · Critical EPSS 0,84%

Kerentanan Improper Control of Generation of Code ('Code Injection') pada langflow. Skor CVSS 3.1 9.9 (Critical) menurut us.ibm.com.

Deskripsi (NVD)

IBM Langflow OSS 1.0.0 through 1.10.0 Langflow versions up to 1.9.2 (commit 94981c443d4918517b9e8163d70fc598dc33a32d) contain a code injection vulnerability in the Policies component's ToolGuard integration that bypasses the allow_custom_components=false security control. The vulnerability exists because the validation mechanism only checks the main component source code in node_template["code"]["value"] but fails to validate dynamic CodeInput fields that store generated ToolGuard Python files. Attackers can embed malicious Python code in these unvalidated dynamic fields, which are persisted in Flow.data and later executed server-side when a guarded tool is invoked through the ToolGuard runtime. This allows authenticated users with flow creation privileges to achieve arbitrary Python code execution on the backend despite custom component restrictions. The vulnerability can be escalated through cross-tenant flow manipulation via the agentic MCP update_flow_component_field tool, which accepts attacker-controlled user_id parameters, enabling attackers to inject malicious code into victim users' flows. When combined with publicly accessible flows and specific misconfigurations (AUTO_LOGIN=true, NEW_USER_IS_ACTIVE=true), the attack can be conducted with reduced authentication requirements.

Rincian

Terbit di NVD
17 Juli 2026
Terakhir diubah
23 Juli 2026
Status NVD
Analyzed
CVSS 3.1
9.9 (Critical), sumber us.ibm.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-94: Improper Control of Generation of Code ('Code Injection')
EPSS (30 hari)
0,84% peluang dieksploitasi; lebih tinggi dari 56,7% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
langflow langflow Versi 1.0.0 hingga sebelum 1.10.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.