Best Cloud Vulnerability Scanners in 2026
Updated
In short: Intruder is ranked #1 of 24 as of 4 October 2026, ahead of Mondoo CSPM and Trivy. The best-ranked option with a free plan is Mondoo CSPM. The lowest first paid tier on this page is Alibaba Cloud Security Center at $1/mo.
Cloud vulnerability scanners can be compared by the cloud environments they support and the areas they scan. Check cloud platforms and deployment model alongside workload and IaC scanning, then consider whether identity analysis and attack path analysis are relevant to your review. Free-plan availability and paid-from pricing add further comparison points. The ranking begins with Intruder, Mondoo CSPM, and Kubescape, followed by Prowler Cloud and AccuKnox. Weigh the listed scanning capabilities and deployment details against the cloud setup you need to assess.
24 cloud vulnerability scanners ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
10 of the 24 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | IntruderWeb · Windows · Mac · Linux · API | Three bars | — | 4 of 6 | Free | 6.6 | |
| 2 | Mondoo CSPMWeb · Windows · Mac · Linux · API | Three bars | — | 4 of 6 | Free | 6.6 | |
| 3 | TrivyWindows · Mac · Linux · Self-hosted | Three bars | — | 3 of 6 | Free | 6.6 | |
| 4 | GrypeWindows · Mac · Linux · Self-hosted | Three bars | — | 3 of 6 | Free | 6.5 | |
| 5 | KubescapeWindows · Mac · Linux · Self-hosted · API | Three bars | — | 3 of 6 | Free | 6.5 | |
| 6 | Prowler CloudWeb · Linux · Self-hosted · API | Two bars | — | 2 of 6 | $99/mo | 6.5 | |
| 7 | Cy5 Cloud-Native Vulnerability ManagementWeb | Two bars | — | 1 of 6 | Free | 6.4 | |
| 8 | Qualys TotalCloudWeb · API | Two bars | — | 1 of 6 | Free | 6.4 | |
| 9 | RapidFortWeb · Linux · Self-hosted | Two bars | — | 2 of 6 | Free | 6.4 | |
| 10 | ZeusCloudWeb · Self-hosted | Two bars | — | 1 of 6 | Free | 6.4 | |
| 11 | AccuKnoxWeb · Linux · Self-hosted | One bar | — | — | 2 of 6 | — | 5.4 |
| 12 | Alibaba Cloud Security CenterWeb | One bar | — | — | 1 of 6 | $1/mo | 5.4 |
| 13 | OpenCNAPPSelf-hosted | One bar | — | — | 0 of 6 | — | 5.3 |
| 14 | SUSE Multi-Linux ManagerLinux | One bar | — | — | 1 of 6 | — | 5.3 |
| 15 | Holm Security Cloud SecurityWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 16 | Tencent Cloud Security CenterWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 17 | Astra SecurityWeb · API | One bar | — | — | 1 of 6 | $58.25/mo | 5.1 |
| 18 | Google Artifact AnalysisWeb · Mac · Linux · API | Two bars | — | — | 3 of 6 | — | 5.1 |
| 19 | Onam Security API SecurityWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 20 | Cyscale CSPMWeb · API | One bar | — | — | 1 of 6 | $850/mo | 5.0 |
| 21 | Tenable One Cloud SecurityWeb | One bar | — | — | 1 of 6 | — | 5.0 |
| 22 | Tencent Cloud CDNWeb | One bar | — | — | 1 of 6 | CNY 21/mo | 5.0 |
| 23 | Anchore EnterpriseWeb · Linux | No signal | — | — | 2 of 6 | — | 4.8 |
| 24 | Amazon InspectorWeb | No signal | — | — | 1 of 6 | — | 4.6 |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which cloud vulnerability scanner is ranked first on Freedom251?
Intruder is ranked #1 of 24 with a score of 6.6. Mondoo CSPM is second and Trivy third.
How many of these have a free plan?
10 of the 24 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Alibaba Cloud Security Center has the lowest first paid tier we found: $1/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.