PT-2026-33691 · Langflow Ai · Langflow

Eric-D · Published 2026-04-20 · Updated 2026-04-20 · CVE-2026-6596

NVD

CVSS v2.0

7.5

High

AV:N/AC:L/Au:N/C:P/I:P/A:P

A security flaw has been discovered in langflow-ai langflow up to 1.1.0. This issue affects the function create upload file of the file src/backend/base/Langflow/api/v1/endpoints.py of the component API Endpoint. The manipulation results in unrestricted upload. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Exploit

Fix

Improper Access Control

Unrestricted File Upload

Weakness Enumeration

CWE-284

CWE-434

Related Identifiers

CVE-2026-6596

Affected Products

Langflow

References · 5

• 🔥 https://gist.github.com/chenhouser2025/c2aabfdee41009cfe45d28a9924742a0 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-6596 · Security Note
• https://vuldb.com/vuln/358231 · Note
• https://vuldb.com/vuln/358231/cti · Note
• https://vuldb.com/submit/791919 · Note