Is this vulnerability remotely exploitable?

Yes. If the Langflow instance exposes the CSV Agent to remote users (e.g., via a web UI, API, or shared workflow), an attacker who can submit prompt content can exploit this issue without local access.

What level of access does an attacker need?

The attacker needs the ability to influence prompts processed by the CSV Agent node. This can range from anonymous access on a public demo to low-privileged authenticated access in an internal deployment, depending on how the Langflow application is exposed.

What is the safest general fix pattern?

The safest approach is to ensure dangerous execution tools are disabled by default and only enabled explicitly, with strong justification and appropriate isolation. This includes turning off `allow_dangerous_code`, removing bindings to general-purpose REPL tools in agents handling untrusted input, and running any remaining execution capabilities in hardened, least-privilege sandboxes.

Severity:

CRITICAL RISK

(9.8)

Code Injection via Unsafe Python REPL Exposure (CWE-94) in Langflow CSV Agent

CVE-2026-27966

Published:

Feb 25, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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March 7, 2026

Vulnerability Type

Category:

Code Injection

CWE:

CWE-94

Impact:

Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Code Injection

CWE:

CWE-94

Impact:

Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Code Injection via Unsafe Python REPL Exposure (CWE-94) in Langflow CSV Agent

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.9)

Command Injection in MCP Stdio Configuration Validation (CWE-78) in WeKnora

CRITICAL RISK

CRITICAL

(9.9)

SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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