CVE-2026-33017

Katalog CVE

CVSS 9.8 · Critical KEV · sudah dieksploitasi EPSS 24,8%

Kerentanan Improper Control of Generation of Code ('Code Injection') pada langflow. Skor CVSS 3.1 9.8 (Critical) menurut NVD. Masuk katalog KEV CISA pada 25 Maret 2026, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

Langflow is a tool for building and deploying AI-powered agents and workflows. In versions prior to 1.9.0, the POST /api/v1/build_public_tmp/{flow_id}/flow endpoint allows building public flows without requiring authentication. When the optional data parameter is supplied, the endpoint uses attacker-controlled flow data (containing arbitrary Python code in node definitions) instead of the stored flow data from the database. This code is passed to exec() with zero sandboxing, resulting in unauthenticated remote code execution. This is distinct from CVE-2025-3248, which fixed /api/v1/validate/code by adding authentication. The build_public_tmp endpoint is designed to be unauthenticated (for public flows) but incorrectly accepts attacker-supplied flow data containing arbitrary executable code. This issue has been fixed in version 1.9.0.

Rincian

Terbit di NVD

20 Maret 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-94: Improper Control of Generation of Code ('Code Injection')
CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
CWE-306: Missing Authentication for Critical Function

EPSS (30 hari)

24,8% peluang dieksploitasi; lebih tinggi dari 97,8% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Langflow Code Injection Vulnerability

Masuk KEV

25 Maret 2026

Tenggat CISA

8 April 2026 (untuk instansi federal AS)

Ransomware

Belum tercatat

Tindakan wajib

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/langflow-ai/langflow/security/advisories/GHSA-vwmf-pq79-vjvx exploit · mitigasi · advisory vendor
• https://github.com/langflow-ai/langflow/commit/73b6612e3ef25fdae0a752d75b0fabd47328d4f0 patch
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33017 pemerintah AS
• https://github.com/advisories/GHSA-rvqx-wpfh-mfx7 advisory pihak ketiga
• https://medium.com/@aviral23/cve-2026-33017-how-i-found-an-unauthenticated-rce-in-langflow-by-reading-the-code... exploit · advisory pihak ketiga
• https://github.com/langflow-ai/langflow/releases/tag/1.8.2 release notes
• https://www.sysdig.com/blog/cve-2026-33017-how-attackers-compromised-langflow-ai-pipelines-in-20-hours press/media coverage