CVE-2026-9186

MEDIUM CVSS 6.5 View on NVD ↗

Description

IBM Langflow OSS 1.0.0 through 1.11.2 allows remote authenticated attackers to bypass localhost-only MCP configuration installation by spoofing X-Forwarded-For: 127.0.0.1 header, enabling arbitrary writes to IDE config files (~/.cursor/mcp.json, etc.).

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References

https://www.ibm.com/support/pages/node/7285646

Published: Sep 04, 2026 15:17 UTC Modified: Sep 04, 2026 15:17 UTC