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CoreOS Clair vs Red Hat Advanced Cluster Security for Kubernetes comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Qualys TotalCloud
Sponsored
Ranking in Container Security
12th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
44
Ranking in other categories
Vulnerability Management (11th), Cloud Workload Protection Platforms (CWPP) (8th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (2nd), Cloud-Native Application Protection Platforms (CNAPP) (7th)
CoreOS Clair
Ranking in Container Security
39th
Average Rating
8.6
Reviews Sentiment
7.6
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Red Hat Advanced Cluster Se...
Ranking in Container Security
25th
Average Rating
8.2
Reviews Sentiment
7.5
Number of Reviews
12
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Container Security category, the mindshare of Qualys TotalCloud is 1.6%, up from 1.0% compared to the previous year. The mindshare of CoreOS Clair is 0.7%, up from 0.5% compared to the previous year. The mindshare of Red Hat Advanced Cluster Security for Kubernetes is 1.4%, down from 2.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Container Security Mindshare Distribution
ProductMindshare (%)
Qualys TotalCloud1.6%
Red Hat Advanced Cluster Security for Kubernetes1.4%
CoreOS Clair0.7%
Other96.3%
Container Security
 

Featured Reviews

YashwantShinde - PeerSpot reviewer
Soc Analyst at a manufacturing company with 10,001+ employees
Risk-based visibility has transformed how I prioritize cloud vulnerabilities and protect key assets
The best features Qualys TotalCloud offers are cloud asset visibility, vulnerability assessment, and risk prioritization. This risk-based prioritization helped me quickly identify high-risk vulnerabilities and focus on remediation instead of going through every finding. TrueRisk-based prioritization is useful for understanding which vulnerabilities need attention first. It improved our workflow mainly by giving us a single view of cloud assets and their risk, so we could focus on the higher priority vulnerabilities instead of reviewing every finding manually. This helped us prioritize remediations more efficiently and reduce the time spent on vulnerability assessment and follow-up. Qualys TotalCloud helped us identify exposures that might otherwise have been missed, especially across cloud assets, vulnerabilities, and identities. With the SaaS configuration, the unified inventory and risk view made it easier to connect vulnerabilities with asset criticality, exposure, and access permissions, allowing us to investigate high-risk exposures first and address them before they could become bigger security issues.
Felipe Giffu - PeerSpot reviewer
Red Hat Solution Architect at Seprol Computadores e Sistemas
An operational system, similar to Linux where you can run your applications inside containers
With CoreOS, you can run your applications inside containers. For example, if you have an application that needs to run on Linux, you can create and install a container. However, it's important to note that you don't install CoreOS inside a container; CoreOS is the host operating system that manages containers. When you mentioned using Nacula as part of your CI/CD pipeline, it means your application is deployed and managed automatically through the CI/CD process. Containers are used to deploy your application within this pipeline, but CoreOS does not run inside these containers. Instead, CoreOS is the base operating system that supports and manages these containers.
JR
Cybersecurity Architect/System Security Engineer at General Dynamics Mission Systems–Canada
Provides network mapping feature for visualizing container communication but complex setup
There is room for improvement in the setup process. All these tools come down to how you're integrating into your environment and having good knowledge of the tool. So that's the biggest problem with all these security tools – you gotta have knowledgeable people to build, integrate, and really flesh them out in your environment to make them work as they should.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"One of Qualys' best features is its categorization, which allows us to see the types of assets, their security postures, and the AI-powered version of the tool."
"Qualys TotalCloud has significantly reduced our workload in terms of managing risks, helping us to be more efficient and save substantial resources."
"CSPM is currently the most used feature, and we are enjoying the new feature, FlexScan, which is valuable for Internet-facing VMs."
"Qualys TotalCloud's most valuable feature is its ability to link clusters of assets, providing a clear model of deployments, vulnerabilities, and statuses."
"Qualys TotalCloud fulfills all these needs."
"The most valuable feature is extensibility."
"Its excellent graphical interface makes the scanning process simple."
"It is a cloud-native app that integrates with both IaaS and SaaS. It seamlessly integrates with other platforms."
"CoreOS Clair's best feature is detection accuracy."
"CoreOS Clair can be used by organizations of any size."
"With CoreOS, you can run your applications inside containers. For example, if you have an application that needs to run on Linux, you can create and install a container. However, it's important to note that you don't install CoreOS inside a container; CoreOS is the host operating system that manages containers."
"I am impressed with the tool's visibility."
"Scalability-wise, I rate the solution a nine out of ten."
"The most valuable feature is the ability to share resources."
"It is easy to install and manage."
"I like virtualization and all those tools that come with OpenShift. I also like Advanced Cluster Management and the built-in security."
"The technical support is good."
"Offers easy management with authentication and authorization features"
"The most beneficial security feature of the product revolves around the areas of vulnerability and configuration."
 

Cons

"I would like the ability to disable certain default built-in policies as they can be misleading when creating dashboards. That is the top one."
"In my opinion, what can be improved in Qualys TotalCloud includes pricing and container scanning."
"There should be improvement from a dashboard perspective when collecting and showcasing data to lead management."
"Two areas for improvement in Qualys TotalCloud are the speed of the public cloud platform and vulnerability detection."
"The support is not up to the mark and seems to be overburdened."
"I sometimes have difficulty detecting or uninstalling certain versions of applications, which I have to do manually."
"Regarding improvements to Qualys TotalCloud, I suggest that user navigation can be enhanced because initially, many users found it complicated and had trouble understanding the platform due to information being spread across multiple tabs."
"It is already perfect, but they can bring some newer dashboards and customization options for the dashboard. It would be great to be able to include on-prem assets on the dashboard."
"An area for improvement is that CoreOS Clair doesn't provide information about the location of vulnerabilities it detects."
"It can be improved in its support response. They usually take up to seven days to resolve the issue."
"The tool's command line and configuration are hard for us to understand and make deployment complex. It should also include zero trust, access control features and database connectivity."
"They're trying to convert it to the platform as a source. They are moving in the direction of Cloud Foundry so it can be easier for a developer to deploy it."
"Red Hat is somewhat expensive."
"I do see that some features associated with the IAST part are not included in the tool, making it an area where improvements are required."
"The testing process could be improved."
"The deprecation of APIs is a concern since the deprecation of APIs will cause issues for us every time we upgrade."
"The support and specifications need to be up to date for the cluster technologies"
"The solution lacks features when compared to some of the competitors such as Prisma Cloud by Palo Alto Networks and has room for improvement."
 

Pricing and Cost Advice

"I am not sure about the pricing. From what I understand, it is a bit on the higher side, but I do not have the exact numbers."
"Qualys TotalCloud offers cost-effective licensing flexibility."
"The cost is high, but it meets our organizational needs."
"The pricing for TotalCloud is attractive and competitive in the market. Given the features, especially the dashboard, I have no concerns regarding pricing."
"The pricing is comparable. It is built into our other product, so I cannot piecemeal it. It is a part of our subscription."
"Qualys TotalCloud is expensive."
"TotalCloud's price is about right where I would expect it to be."
"It isn't cheap, but it's reasonable. It helps us to manage things with very few resources."
"CoreOS Clair is open-source and free of charge."
"It's a costly solution"
"The price of Red Hat Advanced Cluster Security for Kubernetes is better than Palo Alto Prisma."
"The pricing model is moderate, meaning it is not very expensive."
"We purchase a yearly basis license for the solution."
"Red Hat offers two pricing options for their solution: a separate price, and a bundled price under the OpenShift Platform Plus."
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
Comms Service Provider
12%
Outsourcing Company
12%
Financial Services Firm
10%
Financial Services Firm
16%
Performing Arts
13%
Government
11%
Comms Service Provider
9%
Financial Services Firm
28%
Manufacturing Company
7%
Computer Software Company
6%
Insurance Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise5
Large Enterprise32
No data available
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise2
Large Enterprise4
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
To be totally honest, I do not have any best features because I have had a bad experience using this tool, especially...
What is your primary use case for Qualys TotalCloud?
My main use case for Qualys TotalCloud is vulnerability management and exposure management. I use this tool to evalua...
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Also Known As

Qualys TotalCloud with FlexScan
No data available
StackRox
 

Overview

 

Sample Customers

Information Not Available
eBay, Veritas, Verizon, SalesForce
City National Bank, U.S. Department of Homeland Security
Find out what your peers are saying about CoreOS Clair vs. Red Hat Advanced Cluster Security for Kubernetes and other solutions. Updated: August 2026.
910,479 professionals have used our research since 2012.