Vulnerabilities in pkg:pypi/openvpn-monitor

PACKAGE

Advisory Identifier: GHSA-vw35-c8hf-fwmq

Advisory Summary

CVE-2021-31604 is a MODERATE (CVSS 5.3) furlongm openvpn-monitor allows csrf to vulnerability (CWE-352: Cross-Site Request Forgery (CSRF)) affecting Openvpn monitor libraries in the PyPI ecosystem. The issue involves furlongm openvpn-monitor allows csrf to disconnect an arbitrary client. Remediation is available in the latest vendor maintenance releases.

3 Known Advisory Record(s)

Package Vulnerability Intelligence

pkg:pypi/openvpn-monitor

3 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:pypi/openvpn-monitor. Select an advisory below to view technical details or fixes.

Advisory ID	CVE / NVD	Severity	Summary
GHSA-vw35-c8hf-fwmq	CVE-2021-31604	MODERATE	furlongm openvpn-monitor allows CSRF to disconnect an arbitrary client
GHSA-5w5c-3g26-8mmc	CVE-2021-31606	HIGH	furlongm openvpn-monitor allows Authorization Bypass to disconnect arbitrary clients
GHSA-4258-vcjw-wwxx	CVE-2021-31605	HIGH	furlongm openvpn-monitor command injection

CVE-2021-31604 at a Glance

CVE Identifier CVE-2021-31604

GHSA Identifier GHSA-vw35-c8hf-fwmq

Severity MODERATE

CVSS v3.1 Base Score 5.3

CWE Classification CWE-352: Cross-Site Request Forgery (CSRF)

Affected Product Openvpn monitor

Package Ecosystem PyPI

Published Date 2022-05-24

Last Updated 2026-06-10

Security Impact

CVSS: 5.3

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:N/I:N/A:L).

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 None (C:N)

Integrity None (I:N)

Availability Low (A:L)

How to Fix CVE-2021-31604

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

openvpn-monitor fixed: Latest secure release

pip install openvpn-monitor>=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 openvpn-monitor

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2021-31604, inspect your installed packages using pip:

pip show openvpn-monitor

Analyze the terminal output to locate any version of Openvpn monitor 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 openvpn-monitor command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-352: Cross-Site Request Forgery (CSRF), where the web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor. In Openvpn monitor, 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

furlongm openvpn-monitor through 1.1.3 allows CSRF to disconnect an arbitrary client.

CVE-2021-31604 Affected Openvpn monitor Versions

1 component(s)

Product / Package	Ecosystem	Affected Versions	Fixed Version
openvpn-monitor pypi/openvpn-monitor	PyPI	≤ 1.1.3

References

NVD — CVE-2021-31604 NVD

https://nvd.nist.gov/vuln/detail/CVE-2021-31604

Openvpn monitor Source Repository REPOSITORY

https://github.com/furlongm/openvpn-monitor

Openvpn monitor Source Repository REPOSITORY

https://github.com/furlongm/openvpn-monitor/releases

Openvpn monitor Source Repository REPOSITORY

https://github.com/pypa/advisory-database/tree/main/vulns/openvpn-monitor/PYSEC-2021-352.yaml

Openvpn monitor Security Information SECURITY

http://packetstormsecurity.com/files/164281/OpenVPN-Monitor-1.1.3-Cross-Site-Request-Forgery.html

Frequently Asked Questions

What is CVE-2021-31604?

CVE-2021-31604 is a security vulnerability in Openvpn monitor involving furlongm openvpn-monitor allows CSRF to disconnect an arbitrary client under CWE-352: Cross-Site Request Forgery (CSRF).

Which Openvpn monitor versions are affected?

Affected versions include releases prior to current release patches across affected packages: openvpn-monitor.

What version fixes CVE-2021-31604?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

Is openvpn-monitor affected?

Yes, openvpn-monitor 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-2021-31604?

CVE-2021-31604 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

What CWE is associated with CVE-2021-31604?

CVE-2021-31604 is classified under CWE-352: Cross-Site Request Forgery (CSRF) (The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.).

How can I check PyPI dependencies for CVE-2021-31604?

Run the dependency tree command: 'pip show openvpn-monitor'. 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-vw35-c8hf-fwmq",
  "modified" : "2026-06-10T18:46:21Z",
  "published" : "2022-05-24T19:15:55Z",
  "aliases" : [ "CVE-2021-31604" ],
  "summary" : "furlongm openvpn-monitor allows CSRF to disconnect an arbitrary client",
  "details" : "furlongm openvpn-monitor through 1.1.3 allows CSRF to disconnect an arbitrary client.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "openvpn-monitor"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.1.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-31604"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/furlongm/openvpn-monitor"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/furlongm/openvpn-monitor/releases"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/openvpn-monitor/PYSEC-2021-352.yaml"
  }, {
    "type" : "WEB",
    "url" : "http://packetstormsecurity.com/files/164281/OpenVPN-Monitor-1.1.3-Cross-Site-Request-Forgery.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-02-23T20:52:13Z",
    "nvd_published_at" : "2021-09-27T06:15:00Z"
  }
}

CVSS V3

5.3 MODERATE

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 None (C:N)

Integrity None (I:N)

Availability Low (A:L)

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Advisory Metadata

Source ID: GHSA-vw35-c8hf-fwmq
Schema Version: 1.4.0
Published: 2022-05-24 19:15
Last Modified: 2026-06-10 18:46
Database Record File: advisories/github-reviewed/2022/05/GHSA-vw35-c8hf-fwmq/GHSA-vw35-c8hf-fwmq.json