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CVE-2026-6599

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CVE-2026-6599

Published: Apr 20, 2026

Modified: Apr 20, 2026

PUBLISHED

CVSS v3.1

6.3

MEDIUM

Description

A vulnerability was detected in langflow-ai langflow up to 1.8.3. The impacted element is the function get_client_ip/install_mcp_config of the file src/backend/base/langflow/api/v1/mcp_projects.py of the component Model Context Protocol Configuration API. Performing a manipulation of the argument X-Forwarded-For results in injection. The attack may be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

VendorProductVersions

langflow-ai

langflow

affected
1.8.0
affected
1.8.1
affected
1.8.2
affected
1.8.3

Weaknesses (CWE)

CWE-74
CWE-707

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:W/RC:R

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

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