CVE-2024-42835: Langflow Langflow Has Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-56m6-4mhw-h3g5
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CVSS 9.8
Published
Advisory Summary

CVE-2024-42835 is a HIGH (CVSS 9.8) langflow has vulnerability vulnerability (General Security Weakness) affecting Langflow libraries in the PyPI ecosystem. The issue involves langflow has vulnerability in pythoncodetool component. Remediation is available in the latest vendor maintenance releases.

CVE-2024-42835 at a Glance

CVE Identifier CVE-2024-42835
GHSA Identifier GHSA-56m6-4mhw-h3g5
Severity HIGH
CVSS v3.1 Base Score 9.8
CWE Classification General Security Weakness
Affected Product Langflow
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2024-42835

To remediate this vulnerability, upgrade all affected Langflow dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

langflow fixed: Latest secure release 
pip install langflow>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show langflow

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2024-42835, inspect your installed packages using pip:

pip show langflow

Analyze the terminal output to locate any version of Langflow in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show langflow command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Langflow, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

langflow v1.0.12 was discovered to contain a remote code execution (RCE) vulnerability via the PythonCodeTool component.

CVE-2024-42835 Affected Langflow Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
langflow
pypi/langflow
PyPI
≤ 1.0.12

References

NVD — CVE-2024-42835 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-42835
Langflow Source Repository REPOSITORY
https://github.com/langflow-ai/langflow/issues/2908
Langflow Source Repository REPOSITORY
https://github.com/langflow-ai/langflow
Langflow Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/langflow/PYSEC-2024-279.yaml

Frequently Asked Questions

What is CVE-2024-42835?
CVE-2024-42835 is a security vulnerability in Langflow involving langflow has vulnerability in PythonCodeTool component under General Security Weakness.
Which Langflow versions are affected?
Affected versions include releases prior to current release patches across affected packages: langflow.
What version fixes CVE-2024-42835?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is langflow affected?
Yes, langflow is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2024-42835?
CVE-2024-42835 has a CVSS v3.1 base score of 9.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2024-42835?
CVE-2024-42835 is classified under General Security Weakness.
How can I check PyPI dependencies for CVE-2024-42835?
Run the dependency tree command: 'pip show langflow'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-56m6-4mhw-h3g5",
  "modified" : "2026-06-06T00:29:18Z",
  "published" : "2024-10-31T15:30:59Z",
  "aliases" : [ "CVE-2024-42835" ],
  "summary" : "langflow has vulnerability in PythonCodeTool component",
  "details" : "langflow v1.0.12 was discovered to contain a remote code execution (RCE) vulnerability via the PythonCodeTool component.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "langflow"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.0.12"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-42835"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/langflow-ai/langflow/issues/2908"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/langflow-ai/langflow"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/langflow/PYSEC-2024-279.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-11-01T21:38:02Z",
    "nvd_published_at" : "2024-10-31T14:15:05Z"
  }
}