CoreOS Clair vs Tenable Cloud Security comparison

Why PeerSpot?

Red Hat and Tenable are both solutions in the Container Security category. Red Hat is ranked #38, while Tenable is ranked #31 with an average rating of 8.5. Red Hat holds a 0.7% mindshare in Container Security, compared to Tenable’s 1.8% 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: September 2026).

Buyer's Guide

CoreOS Clair vs. Tenable Cloud Security

September 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 October 2026, in the Container Security category, the mindshare of Qualys TotalCloud is 1.8%, up from 1.1% compared to the previous year. The mindshare of CoreOS Clair is 0.7%, up from 0.6% compared to the previous year. The mindshare of Tenable Cloud Security is 1.8%, up from 1.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Container Security Mindshare Distribution
Product	Mindshare (%)
Qualys TotalCloud	1.8%
Tenable Cloud Security	1.8%
CoreOS Clair	0.7%
Other	95.7%

Container Security

Featured Reviews

reviewer2859021

Sr Security Engineer at a tech vendor with 5,001-10,000 employees

Risk-based triage has transformed container security and now prioritizes high-impact threats

The best features Qualys TotalCloud offers currently include managing cloud infrastructure and container security while facing major challenges such as alert fatigue. Traditional vulnerability scanners flag hundreds of CVEs on short-lived Kubernetes containers, some of which have no internet exposure or are gone before we can even triage them. I leverage Qualys TotalCloud to move beyond static CVSS. I use it to implement runtime exposure, correlation risk reprioritization, and shift-left integration. This notifies developers to fix a base image upstream rather than patching live ephemeral instances. In my work with cloud and container security, the biggest operational hurdle was alert fatigue. I use Qualys to shift left from static CVSS severity to context-aware risk prioritization. I correlated raw vulnerability data with real-time risk factors such as public network exposure, active runtime execution, or overly permissive IAM roles. This allows us to immediately drop the priority of isolated containers and escalate lower-severity CVEs that sit on an exposed, high-risk path. We can map these findings directly back to our CI/CD pipelines so developers can patch the root base images upstream. We have drastically cut down the signal-to-noise ratio, saved a lot of manual hours doing triage work, and ensured engineering effort goes directly towards high-impact risk reduction.

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

"Qualys TotalCloud has improved our security posture."

"I like the web API security and IoT scanning features the most. The user-friendly design of TotalCloud's interface enables customers to navigate it and use its full potential easily"

"The scalability is good as well. I would rate it ten out of ten."

"One of the features I appreciate is the ability to generate daily reports without relying on anyone else."

"I found the initial setup user-friendly."

"Qualys TotalCloud's most valuable features are its cloud security posture management, Kubernetes, and container security capabilities."

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

"Qualys TotalCloud has positively impacted our bank's performance, and we have definitely seen benefits after implementing this solution."

More Qualys TotalCloud pros

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

"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 can be used by organizations of any size."

"The product's deployment phase is easy."

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

"The key benefit lies in having the largest and most up-to-date database. When it comes to using any Tenable product, it excels in finding vulnerabilities and providing analytics."

"Scanning and reporting are the most valuable features of Tenable Cloud Security"

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

"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."

"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."

More Tenable Cloud Security pros

Cons

"Regarding technical support from Qualys, they respond, but the response time can be too long. Sometimes we need to wait weeks for solutions to simple questions."

"Overall, we are satisfied with it. However, the response part of the Cloud Detection and Response (CDR) module can be improved. It is not yet in place according to requirements; it is not completely available even though the module has been released."

"One thing that could be improved is the user experience and navigation."

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

"The areas in the solution that have room for improvement include the UI/UX design, which should be improved, and they should integrate more artificial intelligence into the product."

"We encountered challenges identifying the correct resource category for certain items, such as those in containers or storage."

"TotalCloud could improve its scanning of niche devices like Wi-Fi dongles and USB modems because they are often untested. It covers everything else, like laptops, mobile devices, and Bluetooth IoT devices. They can improve on the small IoT devices because hackers and testers use these."

"We would like to see Windows-based sensors available in Qualys, as this would make the platform more versatile and support a broader range of environments."

More Qualys TotalCloud cons

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

"An area for improvement is that CoreOS Clair doesn't provide information about the location of vulnerabilities it detects."

"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."

"We still maintain Tenable Cloud Security but have reduced the number of licenses. We now use it occasionally to validate specific items rather than monitoring the entire surface, for which we use Element."

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

"I have faced several bug incidents with the solution"

"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."

"Tenable needs to offer a patch-based solution since it is an area where the tool lacks a bit."

"The product must provide more features."

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

More Tenable Cloud Security cons

Pricing and Cost Advice

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

"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."

"As a middle management member, I do not have direct pricing knowledge, but based on the knowledge from our meetings, its pricing is competitive."

"Qualys TotalCloud is cost-efficient and was selected for its value compared to other products."

"The pricing for TotalCloud is attractive and competitive in the market. Given the features, especially the dashboard, I have no concerns regarding pricing."

"It isn't cheap, but it's reasonable. It helps us to manage things with very few resources."

"Qualys TotalCloud is expensive."

"The pricing is comparable. It is built into our other product, so I cannot piecemeal it. It is a part of our subscription."

More Qualys TotalCloud pricing and cost advice

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

"The tool's pricing is fair."

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

"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."

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Top Industries

By visitors reading reviews

Comms Service Provider

16%

Outsourcing Company

12%

Manufacturing Company

11%

Financial Services Firm

10%

Financial Services Firm

17%

Comms Service Provider

14%

Performing Arts

12%

Government

10%

Financial Services Firm

10%

Manufacturing Company

Government

Construction Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	14
Midsize Enterprise	6
Large Enterprise	35

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?

In terms of improvement, remediation still belongs to the cloud team, which is one of the issues we faced with Qualys...

See all answers

What is your primary use case for Qualys TotalCloud?

My main use case for Qualys TotalCloud is regarding the cloud visibility that we were not having previously. Previous...

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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

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Orca Security vs Qualys TotalCloud

Compared 6% of the time

Prisma Cloud by Palo Alto Networks vs Qualys TotalCloud

Compared 5% of the time

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Snyk vs CoreOS Clair

Compared 12% of the time

JFrog Xray vs CoreOS Clair

Compared 11% of the time

Prisma Cloud by Palo Alto Networks vs CoreOS Clair

Compared 11% of the time

Trivy vs CoreOS Clair

Compared 8% of the time

Sysdig Secure vs CoreOS Clair

Compared 7% of the time

More CoreOS Clair Competitors

Wiz vs Tenable Cloud Security

Compared 7% 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 6% of the time

Plerion vs Tenable Cloud Security

Compared 6% of the time

Sonrai Security vs Tenable Cloud Security

Compared 5% of the time

More Tenable Cloud Security Competitors

Product Reports

Buyer's Guide

Qualys TotalCloud

September 2026

Download Qualys TotalCloud product report

Buyer's Guide

Container Security

September 2026

Download CoreOS Clair product report

Buyer's Guide

Tenable Cloud Security

September 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

September 2026

Free Report: CoreOS Clair vs. Tenable Cloud Security

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