CoreOS Clair vs Tenable Cloud Security comparison

Red Hat and Tenable are both solutions in the Container Security category. Red Hat is ranked #32 with an average rating of 9.0, while Tenable is ranked #31 with an average rating of 8.8. Red Hat holds a 0.7% mindshare in Container Security, compared to Tenable’s 1.9% mindshare. Additionally, 100% of Red Hat users are willing to recommend the solution, compared to 77% of Tenable users who would recommend it.

Comparison Buyer's Guide

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Executive Summary

We performed a comparison between CoreOS Clair and Tenable Cloud Security based on real PeerSpot user reviews.

Find out in this report how the two Container Security solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed CoreOS Clair vs. Tenable Cloud Security Report (Updated: June 2026).

Buyer's Guide

CoreOS Clair vs. Tenable Cloud Security

June 2026

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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

Mindshare comparison

As of July 2026, in the Container Security category, the mindshare of Qualys TotalCloud is 1.5%, up from 0.9% 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 Tenable Cloud Security is 1.9%, up from 1.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Container Security Mindshare Distribution
Product	Mindshare (%)
Qualys TotalCloud	1.5%
Tenable Cloud Security	1.9%
CoreOS Clair	0.7%
Other	95.9%

Container Security

Featured Reviews

Robert Orłowski

IT Security Expert at Alior Bank S.A.

Unified risk scoring has improved our cloud visibility and simplifies remediation priorities

Qualys TotalCloud provides unified vulnerability and threat assessment across both IAS and SaaS. This solution provides a single prioritized view of risk, which helps reduce the work I would have to do. We are no longer based on CVSS; we are based on Qualys risk scoring, which is based on CVSS plus internal findings made by Qualys, and then assigns its own score. The TruRisk insight feature has found a small number of assets with high vulnerability scores, though I am cautious since some information is classified. Qualys TotalCloud has positively impacted our bank's performance, and we have definitely seen benefits after implementing this solution.

Read full review

Felipe Giffu

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.

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DragosCernat

Information Security Architect at WSP

Has significantly improved proactive monitoring through automated asset discovery and seamless integration with cloud environments

Making the system smarter would be beneficial. Adding modules for integration with AWS and Azure would be helpful. Adding capabilities for the scanner to automatically pick up changes and add assets automatically would be valuable. When discussing a big company, it is mandatory to have tools that will assist us rather than waiting for manual input to add hosts. Adding assets manually is prone to mistakes. Humans might forget to add an asset or make errors when adding multiple assets. Taking the human element out of the context and making it more streamlined is the future for security. The human should be involved where expertise is needed, such as analysis and decision-making. Currently, with resource constraints, we need tools to collect and aggregate data, eliminate false positives as much as possible, and present relevant information to employees for action.

Read full review

Quotes from Members

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

Pros

"If someone were to ask me to review Qualys TotalCloud, I would summarize it as an end-to-end solution for cloud security with visibility and governance-grade controls without needing to manage multiple disconnected tools."

"Qualys TotalCloud has significantly improved our organization by automating our reporting processes, reducing the time spent on report creation from two hours to less than fifteen to twenty minutes."

"The agent and agentless scanning in TotalCloud, particularly the FlexScan method, is incredibly valuable. With traditional scanning approaches, we had to give IP ranges and whitelist IPs. All that is now simplified. FlexScan requires minimal intervention, and after configuration, it automatically collects data and performs necessary scans."

"I would recommend Qualys TotalCloud to other users because it is cost-efficient and has a good return on investment."

"The dashboards are particularly valuable as they offer a comprehensive view of the environment, highlighting any misconfigurations."

"While automatic inventory detection upon connection is a helpful feature, a truly valuable capability would be assessing an environment's security posture against Azure and CIS best practices."

"One of the most valuable features of Qualys TotalCloud is FlexScan, which is specifically for internet-facing VMs. We found this feature to be very useful. It was a key differentiator for us."

"I appreciate TotalCloud's real-time protection and remediation features. The remediation options include automated one-click remedies and custom changes that help manage vulnerabilities efficiently."

More Qualys TotalCloud pros

"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."

"CoreOS Clair's best feature is detection accuracy."

"The analytical and reporting capabilities are pretty straightforward and show every transaction and major attempt to attack the application in the cloud."

"The product's deployment phase is easy."

"Tenable Cloud Security has positively impacted my organization with risk reduction and compliance."

"Tenable Cloud Security excels in vulnerability detection, one of its strongest features. Another valuable feature is software composition analysis, which highlights and automates the detection of security flaws. Additionally, their knowledge base is excellent; if anything goes wrong, they provide clear guidance on what needs to be done to address specific vulnerabilities."

"Ermetic can provide super visibility for our cloud environment (we are using AWS), the dashboard is simple to use, the findings provide all of the information you require, it provides detection and remediation, and creating a Jira ticket from a finding is just one click away."

"The product's visibility and remediation work fine for me."

"Ermetic can provide super visibility for our cloud environment (we are using AWS)."

"The tool alerts us on depreciating performance or deficiencies of our web application. It helps us react on time."

More Tenable Cloud Security pros

Cons

"I think Qualys TotalCloud needs to improve its handling of zero-day vulnerabilities and supply chain management because modern ransomware attacks not only target prime critical infrastructures but also the supply chain system."

"The cost of Qualys TotalCloud is high and could be more competitive."

"Qualys TotalCloud needs to improve its accuracy for non-Windows operating systems."

"Enhancing clarity regarding its compliance capabilities would be beneficial, as the current scope is limited in geographic coverage."

"Qualys TotalCloud's increasing complexity, due to the development and deployment of multiple solutions, is making the GUI difficult to navigate."

"A feature improvement could be the inclusion of Windows OS support for container security, as it is currently only supported for Linux."

"Qualys' customer service provides quality answers, but the response time is long, even though it is within the SLA."

"The onboarding process is a bit difficult. In the initial phase, it is very difficult to understand the features, what the dashboard contains, and what criteria they are using."

More Qualys TotalCloud cons

"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."

"Ermetic needs to improve its security scanning. I would like to see more dynamic graphical forms."

"There is a need for the support team to improve their response time since it is one of the areas where the product's technical team has certain shortcomings."

"I do think there might be room for more integrations. This could allow for further customization and flexibility, essentially offering different functionality options to accommodate various budgets."

"I have faced several bug incidents with the solution"

"I didn't find anything that wasn't useful or needed to be added."

"Due to its robust nature, the platform's adoption can be overwhelming initially. However, once organizations start using it, they tend to get used to it. I haven't had much direct interaction with the support team, but some partners have reported a desire for better support for the product."

"If Tenable Cloud Security offers a complete Cnapp solution with CWP, CIEM, and Waap security, it will be able to compete with other competitors."

"The product must provide more features."

More Tenable Cloud Security cons

Pricing and Cost Advice

"Qualys TotalCloud offers good pricing that is affordable and competitive with the market. Our partnership also provides us with additional benefits."

"Qualys TotalCloud offers cost-effective licensing flexibility."

"While Qualys TotalCloud's pricing is currently acceptable, it is becoming increasingly expensive and may soon be considered overpriced."

"Although Qualys TotalCloud is relatively expensive due to its unique automation features, its cost-effectiveness is rated an eight out of ten, with ten being the most costly."

"Qualys TotalCloud is expensive, but it offers a premier solution with no headaches."

"Qualys TotalCloud is expensive."

"Qualys TotalCloud offers competitive pricing given its comprehensive suite of features, including integration, assessment, remediation, and detection capabilities, all within a single platform."

"TotalCloud's price is about right where I would expect it to be."

More Qualys TotalCloud pricing and cost advice

"CoreOS Clair is open-source and free of charge."

"There is a need to opt for a subscription-based pricing model to use Tenable Cloud Security. I rate the product price an eight on a scale of one to ten, where one is low price and ten is high price."

"The tool's price is good compared to other brands. The tool's subscription is for a year."

"The tool's pricing is fair."

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Top Industries

By visitors reading reviews

Manufacturing Company

17%

Financial Services Firm

14%

Construction Company

Comms Service Provider

Financial Services Firm

18%

Performing Arts

13%

Government

11%

Comms Service Provider

Government

11%

Financial Services Firm

10%

Manufacturing Company

Construction Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	9
Midsize Enterprise	4
Large Enterprise	29

No data available

By reviewers
Company Size	Count
Small Business	5
Midsize Enterprise	2
Large Enterprise	5

Questions from the Community

What is your experience regarding pricing and costs for Qualys TotalCloud?

The price is very expensive, actually.

See all answers

What needs improvement with Qualys TotalCloud?

Areas that need improvement in every solution include the remediation part. The remediation steps should be simple en...

See all answers

What is your primary use case for Qualys TotalCloud?

Our use case involves the assets that we have under cloud, the assets exposed to the internet, and the internal appli...

See all answers

What is your experience regarding pricing and costs for CoreOS Clair?

If you work with CoreOS or OpenShift, you don't need to pay for CoreOS separately. When you pay for OpenShift, you ge...

See all answers

What needs improvement with CoreOS Clair?

It can be improved in its support response. They usually take up to seven days to resolve the issue.

See all answers

What is your primary use case for CoreOS Clair?

We use the tool to manage and secure the event file system. CoreOS Clair is an operational system that is very simila...

See all answers

What needs improvement with Tenable Cloud Security?

Making the system smarter would be beneficial. Adding modules for integration with AWS and Azure would be helpful. Ad...

See all answers

What is your primary use case for Tenable Cloud Security?

We had other solutions that we used. One solution was that we did not have something exactly similar to what Element ...

See all answers

What is your experience regarding pricing and costs for Ermetic CSPM?

I wasn't involved with the pricing, setup cost and licensing for Tenable Cloud Security.

See all answers

Comparisons

Wiz vs Qualys TotalCloud

Compared 11% of the time

Microsoft Defender for Cloud vs Qualys TotalCloud

Compared 8% of the time

Prisma Cloud by Palo Alto Networks vs Qualys TotalCloud

Compared 6% of the time

JupiterOne vs Qualys TotalCloud

Compared 5% of the time

Nucleus Security vs Qualys TotalCloud

Compared 5% of the time

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Snyk vs CoreOS Clair

Compared 14% of the time

JFrog Xray vs CoreOS Clair

Compared 14% of the time

Prisma Cloud by Palo Alto Networks vs CoreOS Clair

Compared 12% of the time

Aqua Cloud Security Platform vs CoreOS Clair

Compared 9% of the time

Red Hat Advanced Cluster Security for Kubernetes vs CoreOS Clair

Compared 8% of the time

More CoreOS Clair Competitors

Wiz vs Tenable Cloud Security

Compared 8% of the time

Prisma Cloud by Palo Alto Networks vs Tenable Cloud Security

Compared 6% of the time

Orca Security vs Tenable Cloud Security

Compared 5% of the time

FortiCNAPP vs Tenable Cloud Security

Compared 5% of the time

Plerion vs Tenable Cloud Security

Compared 5% of the time

More Tenable Cloud Security Competitors

Product Reports

Buyer's Guide

Qualys TotalCloud

June 2026

Download Qualys TotalCloud product report

Buyer's Guide

Container Security

June 2026

Download CoreOS Clair product report

Buyer's Guide

Tenable Cloud Security

June 2026

Download Tenable Cloud Security product report

Also Known As

Qualys TotalCloud with FlexScan

No data available

Ermetic, Ermetic Identity Governance for AWS

Overview

Qualys TotalCloud enhances security posture across cloud environments with continuous monitoring, vulnerability management, and risk visualization, ensuring efficient threat assessment and automated remediation for improved cyber risk reduction.

Qualys TotalCloud offers a robust suite of security tools essential for organizations managing multi-cloud infrastructures. By integrating cloud accounts and automating workflows, it supports AWS, Azure, and GCP, offering comprehensive vulnerability management and zero-day detection. The platform's user-friendly design, combined with its extensive risk management and unified threat assessment capabilities, enables organizations to prioritize and remediate vulnerabilities effectively. TruRisk Insights provides clear insights on cyber risks, while the automation options streamline patch management and scanning processes. API integration across IaaS and SaaS environments further enhances resource allocation efficiency and saves time, addressing misconfigurations across cloud environments.

What are the most important features of Qualys TotalCloud?

Accurate Vulnerability Reports: Delivers precise and actionable insights for risk mitigation.
Zero-Day Detection: Identifies and addresses zero-day vulnerabilities proactively.
Unified Threat Assessment: Offers comprehensive evaluation of threats across the environment.
Extensive Risk Management: Manages risks effectively with advanced insights and prioritization.
Continuous Monitoring: Provides non-stop surveillance for vulnerabilities and threats.
Cloud-Native Automation: Streamlines processes and reduces manual efforts using automation.
FlexScan for Internet-Facing VMs: Scans external VMs efficiently to detect vulnerabilities.
Dashboard Risk Visualization: Clear visualization helps prioritize vulnerabilities.

What benefits and ROI should users look for?

Improved Security Posture: Enhances threat detection and response across clouds.
Time Savings: Automation reduces time spent on manual vulnerability management.
Resource Efficiency: Better allocation of resources through streamlined workflows.
Enhanced Risk Prioritization: Focus on critical vulnerabilities for effective mitigation.
Integrated Cloud Accounts: Facilitates seamless cloud management and security.

Qualys TotalCloud is deployed in sectors needing rigorous vulnerability management, such as finance and healthcare. Companies utilize it to secure multi-cloud environments like AWS, Azure, and GCP, focus on compliance, and integrate security into CI/CD pipelines to detect and remedy threats pre-deployment.

Qualys

CoreOS Clair is an open-source tool designed to analyze vulnerabilities within container images, offering in-depth scanning and reporting capabilities. Its integration with the container environment makes it a vital resource for maintaining security within cloud-native applications.

CoreOS Clair provides a robust solution for identifying and managing vulnerabilities across containerized systems. By integrating seamlessly into CI/CD workflows, it enhances security protocols without disrupting operational efficiencies. Its effectiveness is rooted in its ability to assess vulnerabilities in real-time, delivering critical insights that inform proactive security measures. Clair supports a comprehensive database of known vulnerabilities, enabling quick identification and resolution of security risks.

What are its most important features?

Vulnerability Scanning: Identifies vulnerabilities in container images, ensuring security compliance.
API Integration: Offers API support for seamless integration with existing systems.
Continuous Updates: Maintains a current database of vulnerabilities, enhancing detection capabilities.
Customizable Notification: Allows configuration of alerts based on specified vulnerability criteria.

What benefits should users look for in the reviews?

Improved Security: Regular scans help in early detection and mitigation of vulnerabilities.
Operational Efficiency: Automated processes reduce manual efforts necessary for security checks.
Adaptability: API functionality allows implementation within diverse IT environments.
Scalability: Designed to support extensive deployment without loss of performance.

In industries such as finance and healthcare, CoreOS Clair enhances security by integrating into existing workflows, ensuring that sensitive data is protected against vulnerabilities. Its ability to identify threats in real-time supports compliance with stringent regulatory standards without compromising efficiency.

Red Hat

Tenable Cloud Security is a comprehensive solution designed to help organizations secure their cloud environments across various platforms, including AWS, Azure, and Google Cloud. It offers continuous visibility, compliance management, and threat detection to ensure that cloud infrastructure and applications are protected from vulnerabilities and misconfigurations.

Tenable Cloud Security exemplifies a comprehensive Cloud-Native Application Protection Platform (CNAPP) by providing a unified solution that covers the entire cloud security lifecycle, from development to runtime. This platform is designed to address vulnerabilities, misconfigurations, threats, and compliance risks across multi-cloud environments, making it an essential tool for organizations adopting cloud-native architectures. In practice, Tenable Cloud Security integrates security into the development process through its shift-left approach, particularly with Infrastructure as Code (IaC) security. This ensures that security measures are embedded early in the development lifecycle, allowing teams to identify and mitigate vulnerabilities before they reach production. Once in production, the platform continues to provide real-time visibility into cloud environments, enabling continuous monitoring and proactive threat detection.

The solution's comprehensive protection spans various aspects of cloud security, including the identification and remediation of misconfigurations, automated compliance management, and advanced threat intelligence. By automating these processes, Tenable Cloud Security reduces the manual effort required to manage cloud security, freeing up resources for more strategic initiatives.

What are the key features of Tenable Cloud Security?

Unified Platform: Covers the entire cloud security lifecycle, from development to runtime, providing comprehensive protection.
Shift-Left Approach with IaC Security: Integrates security early in the development process, ensuring that vulnerabilities are caught and remediated before deployment.
Continuous Monitoring: Offers real-time visibility and monitoring of cloud environments, enabling proactive threat detection and response.
Automation: Streamlines security operations, reducing the need for manual intervention and increasing operational efficiency.
Comprehensive Threat and Compliance Management: Identifies and mitigates vulnerabilities, misconfigurations, and compliance risks across multi-cloud environments.

What are the benefits of using Tenable Cloud Security?

Improved Security Posture: Early detection and remediation of vulnerabilities lead to a stronger overall security posture.
Operational Efficiency: Automation reduces the workload on security teams, allowing them to focus on higher-priority tasks.
Risk Reduction: Proactively identifies and addresses risks before they impact production environments.
Simplified Compliance: Helps organizations meet and maintain compliance with industry standards, reducing the complexity and cost of audits.

Tenable Cloud Security is particularly valuable in industries with stringent regulatory requirements, such as finance, healthcare, and retail. For example, in the financial sector, it helps organizations ensure compliance with regulations like PCI-DSS while safeguarding sensitive data across cloud environments.

In summary, Tenable Cloud Security is a robust CNAPP solution that integrates security throughout the cloud lifecycle, providing comprehensive protection and operational efficiency for cloud-native environments.

Tenable

Sample Customers

Information Not Available

eBay, Veritas, Verizon, SalesForce

Tyler Technologies, Bilfinger, BarkBox, MongoDB, airSlate, Adama, Latch, Cloudinary, Riskified, AppsFlyer, IntelyCare, Aidoc, 42Dot, and more.

Buyer's Guide

CoreOS Clair vs. Tenable Cloud Security

June 2026

Free Report: CoreOS Clair vs. Tenable Cloud Security

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