PYSEC-2026-4231 Langflow: PythonREPLComponent executes unsandboxed Python code, enabling authenticated RCE and privilege escalation

Summary Langflow's built-in Python interpreter components — PythonREPLComponent Python Interpreter and the legacy PythonREPLToolComponent Python REPL Tool — executed arbitrary user- or model-supplied Python code inside flows without effective sandboxing. Because the code ran in-process with the...

GHSA-8QPJ-27X8-PWPQ Langflow: PythonREPLComponent executes unsandboxed Python code, enabling authenticated RCE and privilege escalation

Summary Langflow's built-in Python interpreter components — PythonREPLComponent Python Interpreter and the legacy PythonREPLToolComponent Python REPL Tool — executed arbitrary user- or model-supplied Python code inside flows without effective sandboxing. Because the code ran in-process with the...

Langflow: PythonREPLComponent executes unsandboxed Python code, enabling authenticated RCE and privilege escalation

Summary Langflow's built-in Python interpreter components — PythonREPLComponent Python Interpreter and the legacy PythonREPLToolComponent Python REPL Tool — executed arbitrary user- or model-supplied Python code inside flows without effective sandboxing. Because the code ran in-process with the...

Duplicate Advisory: Langflow: PythonREPLComponent executes unsandboxed Python code, enabling authenticated RCE and privilege escalation

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-8qpj-27x8-pwpq. This link is maintained to preserve external references. Original Description IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined...

GHSA-FRVG-495W-M47V Duplicate Advisory: Langflow: PythonREPLComponent executes unsandboxed Python code, enabling authenticated RCE and privilege escalation

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-8qpj-27x8-pwpq. This link is maintained to preserve external references. Original Description IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined...

CVE-2026-10561 Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection

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...

CVE-2026-10561

Affected product: Langflow OSS (1.0.0–1.9.3). Vulnerability: Unauthenticated remote code execution via improper isolation of Python execution in the PythonREPLComponent, combined with an authentication bypass. CPython’s exec() uses a globals dict without correctly restricting builtins, allowing a...

CVE-2026-10561 Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection

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...

Security Bulletin: Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection

Summary Langflow OSS contains unauthenticated RCE vulnerability in PythonREPLComponent "Python Interpreter". Component's getglobals builds restricted globals dict from globalimports whitelist default: "math" but never sets globals"builtins" = . CPython's exec automatically inserts full builtins...