CVE-2026-10561CWE-94

Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection

Critical · published June 22, 2026

CVSS v3.1
10.0
EPSS
1%
Percentile
56.8
In the wild
Unconfirmed
What it is

IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined with an authentication bypass that allows an unauthenticated attacker to execute arbitrary code on the host system, resulting in complete compromise

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00820 · 56.8th percentile
Weakness
CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-06-22T13:22Z
EPSS history
Timeline
  • 22 JUN 13:22Z
    Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection
    cvelistv5