CVE-2026-19295

Langflow is affected by multiple remote code execution vulnerabilities due to insufficient code-execution policy enforcement

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.

Affected

IBM · Langflow OSS

CVSS v3.1 IBM

9.9 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

3.00% chance of exploitation in the next 30 days, 87th percentile

Published

2026-08-28

Updated

2026-09-01

Proof-of-concept exploits (1)

• rmhowe425/POC-CVE-2026-192951★ · 2026-08-29

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/langflow_auth_rce_cve…

Security advisories

• https://www.ibm.com/support/pages/node/7284733

References

• CVE Record
• NVD entry

Related

• CVE-2025-11201
• CVE-2025-68613
• CVE-2026-0768
• CVE-2026-0769
• CVE-2026-10134
• CVE-2026-18729