CVE-2026-19295CWE-95

CVE-2026-19295

Critical · published August 29, 2026

CVSS v3.1
9.9
EPSS
3%
Percentile
87.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.02997 · 87.3th percentile
Weakness
CWE-95 · Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
Published
2026-08-29T02:16Z
Affected products (1)
ProductVersionsFixed in
langflow/langflow≥ 1.0.0, < 1.11.21.11.2
References (1)
https://www.ibm.com/support/pages/node/7284733 · [email protected]
EPSS history
Timeline
  • 30 AUG 16:16Z
    EPSS moved — → 1%
    epss
  • 28 AUG 20:53Z
    Langflow is affected by multiple remote code execution vulnerabilities due to insufficient code-execution policy enforcement
    cvelistv5