VULNERABILITY INTELLIGENCE

CVE-2026-19295

CVSS score9.9 CRITICAL
EPSS probability1.55%
CISA KEVNot currently listed
Published2026-08-28
Last modified2026-09-01
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Description

IBM Langflow OSS 1.0.0 through 1.11.1 allows an authenticated attacker to execute arbitrary operating system commands in the server process by saving a flow with a crafted type field value and triggering a build of a wrapper flow that references it. This allowed privilege escalation from "authenticated flow user" to arbitrary OS-level command execution under the server process identity, bypassing the LANGFLOW_ALLOW_CUSTOM_COMPONENTS=false policy control.

Weakness classification

  • psirt@us.ibm.com: CWE-95

Primary references