Open source vulnerability management software gives teams full code access, no per-user licensing, and the freedom to self-host, but operational cost replaces license cost. These are the open source options in this category, followed by the full list for comparison.
No product in this category matches the open source filter yet, so all 9 are listed below.
Back to all Vulnerability Management Software tools, or browse the full software directory. You can also run head-to-head comparisons or read about our review methodology.
For background on scoring, see how rankings work. Our editorial articles add deeper analysis, the glossary clarifies vendor terminology, and our calculators help estimate ROI before the shortlist narrows further.
Nothing in this category met the open source filter, so the full vulnerability management software category is listed here instead.
Custom quote · Cloud
Detection and response run from the cloud through a single lightweight agent. Threat intelligence is drawn in real time from CrowdStrike's global sensor network. The Threat Intelligence integration then attaches adversary context to an alert, which matters for security teams that need to know who is behind an intrusion as well as what it touched. Commercial terms are quoted per engagement.
subscription
Cloud-native application protection platform with vulnerability management and behavior-based threat detection.
subscription
Agentless cloud security platform with vulnerability scanning, compliance, and anomaly detection.
subscription
Cloud-based vulnerability management with asset discovery, prioritization, and integrated patch management.
subscription
Vulnerability management solution with live dashboards, risk scoring, and integration with remediation workflows.
Custom quote · Cloud
The autonomous response in SentinelOne Singularity will isolate and remediate a threat with no analyst involved, which is the point for enterprise teams whose SOC bandwidth is the limiting factor. Organizations that want a human to review before remediation runs have a different question to answer. For them, how far those autonomous settings can be tuned toward their own risk tolerance decides the fit.
freemium
Developer security platform for finding and fixing vulnerabilities in code, dependencies, containers, and IaC.
subscription
Industry-standard vulnerability scanner for identifying vulnerabilities, misconfigurations, and compliance gaps.
subscription
Cloud security platform that scans across VMs, containers, serverless, and data stores for vulnerabilities and misconfigurations.
The license is free, but hosting, maintenance, patching, and upgrades replace the vendor's license fee. Teams without dedicated ops resources often spend more on self-managed open source than on a managed commercial alternative.
Open source is strongest when you need full code control, on-premises deployment for compliance, or want to avoid vendor lock-in. It is weaker when your team lacks the ops capacity to maintain, patch, and scale the deployment.
Check community activity (commits, issues, and releases in the last six months), commercial support options, documentation quality, and the total operational burden against a managed alternative. A dormant project with no commercial backing is a risk.
