🚨 CVE-2026-9186
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.).
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Security Bulletin: Langflow is vulnerable to stored cross-site scripting and IP spoofing due to unsanitized Markdown rendering…
Langflow contains two vulnerabilities affecting client-side security and access control integrity. The MarkdownField component renders chat messages using the rehypeRaw plugin without a sanitization pass, causing attacker-controlled LLM response text containing…
September 4, 2026 33
