CVE-2026-5027

This post is a research article published by EQSTLab. Thanks toYahia Hamza, who reported and analyzed this vulnerability. CVE-2026-5027 ★ CVE-2026-5027 Langflow Path Traversal / Arbitrary File Write PoC ★ Description CVE-2026-5027 : Langflow Arbitrary File Write Vulnerability description: A path...

VulnCheck KEV: CVE-2026-33309

Langflow is a tool for building and deploying AI-powered agents and workflows. Versions 1.2.0 through 1.8.1 have a bypass of the patch for CVE-2025-68478 External Control of File Name, leading to the root architectural issue within LocalStorageService remaining unresolved. Because the underlying...

Langflow CVE-2026-5027 path traversal detection

Detects Langflow = 1.8.4 affected by CVE-2026-5027 unsanitized multipart filename on POST /api/v2/files → arbitrary file write. Checks /api/v1/version, probes auto-login, and optionally confirms with a benign write to /tmp. Fixed in 1.9.0+. !/usr/bin/env python3 -- coding: utf-8 -- """CVE-2026-50...

CVE-2026-55078: Improper Handling of Highly Compressed Data (Data Amplification)

Coder allows organizations to provision remote development environments via Terraform. Starting in version 2.17.0 and prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, POST /api/v2/files converts zip uploads to tar in memory via CreateTarFromZip, which enforced a per-entry size limit but no...

📄 Langflow 1.8.4 Traversal / Remote Code Execution

This Metasploit module targets a path traversal vulnerability in Langflow versions 1.8.4 and below that allows attackers to write arbitrary files on the system through the /api/v2/files endpoint...

CVE-2026-5027: Improper Limitation of a Pathname to a Restricted Directory

The 'POST /api/v2/files' endpoint does not sanitize the 'filename' parameter from the multipart form data, allowing an attacker to write files to arbitrary locations on the filesystem using path traversal sequences '../'...

CVE-2026-33309

Langflow is a tool for building and deploying AI-powered agents and workflows. Versions 1.2.0 through 1.8.1 have a bypass of the patch for CVE-2025-68478 External Control of File Name, leading to the root architectural issue within "LocalStorageService" remaining unresolved. Because the underlyin...

CVE-2026-33309: Improper Limitation of a Pathname to a Restricted Directory

Langflow is a tool for building and deploying AI-powered agents and workflows. Versions 1.2.0 through 1.8.1 have a bypass of the patch for CVE-2025-68478 External Control of File Name, leading to the root architectural issue within LocalStorageService remaining unresolved. Because the underlying...