CVE-2021-31606 is a high-severity (CVSS 7.5) Improper Authentication vulnerability in openvpn-monitor. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.
furlongm openvpn-monitor allows Authorization Bypass to disconnect arbitrary clients
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
openvpn-monitorReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
furlongm openvpn-monitor through 1.1.3 allows Authorization Bypass to disconnect arbitrary clients.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | openvpn-monitor | all versions | No fix |
Affected Products
openvpn-monitoropenvpn-monitor_projectDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openvpn-monitor, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of openvpn-monitor for CVE-2021-31606. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.
Frequently Asked Questions
Is CVE-2021-31606 in your dependencies?
Find it across PyPI, including transitive dependencies.