CVEvulnerability

CVE-2026-9186

6.5 MEDIUM Published 2026-09-04 Modified 2026-09-08 Official page ↗
Status
Analyzed
Published
2026-09-04
Last modified
2026-09-08
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weaknesses
CWE-284

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.).

Affected configurations

• langflow langflow (>= 1.0.0 < 1.11.3)

Related

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References