CVE-2026-19295

critical · 9.9

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.

9.9

CVSS

1.6%

EPSS (exploit prob.)

75th

EPSS percentile

2026-08-28

Published

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

Weaknesses

CWE-95

Affected products

Vendor	Product	Affected versions
langflow	langflow	>= 1.0.0, < 1.11.2

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-19295