6.5

CVE-2026-9186

Langflow is vulnerable to stored cross-site scripting and IP spoofing due to unsanitized Markdown rendering and untrusted proxy header trust

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.).
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Langflow ≫ Langflow Version >= 1.0.0 < 1.11.3
   Apple ≫ macOS Version -
   Linux ≫ Linux Kernel Version -
   Microsoft ≫ Windows Version -
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.29% 0.211
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
IBM 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE-284 Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

https://www.ibm.com/support/pages/node/7285646
Patch
Vendor Advisory