CVE-2026-7755 MCP Server Configuration Validator Bypass via File Upload API

What is CVE-2026-7755?

CVE-2026-7755 is a high-severity vulnerability in Langflow Langflow, published on 17 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM Langflow OSS 1.0.0 through 1.10.0 Langflow could allow remote code execution due to incomplete validation enforcement on MCP server configuration files.

Weakness: CWE-20

Which versions are affected by CVE-2026-7755?

It affects 1 product.

Products include Langflow Langflow.

How do I fix CVE-2026-7755?

No fix has been published for CVE-2026-7755 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-7755 being exploited?

There is no known exploitation of CVE-2026-7755 in the wild and no public exploit code.

Other vulnerabilities in Langflow Langflow

• CVE-2026-9198 IBM Langflow Code Injection Exploited Critical 9.8
• CVE-2026-0770 Langflow Inclusion of Functionality from Untrusted Control Sphere Exploited Critical 9.8
• CVE-2025-3248 Langflow Missing Authentication Exploited Critical 9.8
• CVE-2025-34291 Langflow Origin Validation Error Exploited Critical 9.4
• CVE-2026-33017 Langflow Code Injection Exploited Critical 9.3

All Langflow Langflow vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-m94m-8f9x-f6r4.