Docker is a powerful tool that can help you increase the security of your containers and hosts. It is the de-facto standard for container technology and is widely adopted by enterprises. However, like any other technology, it has its own security vulnerabilities that you must be aware of.

This article will list the top 10 Docker security vulnerabilities that you should pay attention to.

1. CVE-2019-5736: Container Escape Vulnerability

A critical security vulnerability was discovered in runC, a core component of Docker and other container technologies. This flaw, CVE-2019-5736, allows attackers to escape from containers to the host system. This can enable them to access sensitive data and wreak havoc on your systems.

2. CVE-2018-15664: Insecure Container Deserialization

Docker, by default, does not validate the signing keys of images when they are pulled from a registry. This means an attacker can push a malicious image to a public registry and exploit it on any system that pulls that image without verifying the signing key. This can lead to data loss or arbitrary code execution on the host system.

3. CVE-2018-8115: Container Spoofing Vulnerability

A flaw in the way Docker handles containers can allow an attacker to create a malicious container that appears to be from a trusted source. This can lead to confusion and potentially allow the attacker to gain access to sensitive data or execute arbitrary code on the host system.

4. CVE-2017-1002101: Information Leak in Docker API

A flaw in how Docker APIs handle requests can allow attackers to gain access to sensitive information from the host system, such as container IDs, image IDs, and so on. This can lead to further attacks, such as container escape or data theft.

5. CVE-2016-8867: Unrestricted Upload of Arbitrary Files in Docker Registry

A flaw in how Docker registries handle uploads can allow an attacker to upload arbitrary files to the registry server. This could potentially lead to code execution on the server or denial of service attacks.

6. CVE-2016-3697: Privilege Escalation in Docker

A flaw in the way Docker handles permissions can allow an attacker to gain escalated privileges on the host system. This could potentially allow them to execute arbitrary code or access sensitive data.

7. CVE-2016-9962: Denial of Service in Docker

A flaw in the way Docker handles specific requests can allow an attacker to send a malicious request that will result in a denial of service condition. This could potentially lead to a system being unusable or inaccessible.

8. CVE-2016-0777: Information Leak in Docker API

A flaw in how Docker APIs handle requests can allow attackers to gain access to sensitive information from the host system, like container IDs, image IDs, and so on. This can lead to further attacks, such as container escape or data theft.

9. CVE-2015-7547: Privilege Escalation in Docker

A flaw in the way Docker handles permissions can allow an attacker to gain escalated privileges on the host system. This could potentially allow them to execute arbitrary code or access sensitive data.

10. CVE-2014-6271: Shellshock

A flaw in how Bash handles certain requests can allow an attacker to send a malicious request that will result in arbitrary code execution on the host system. This could potentially lead to a system being compromised or data being stolen.

These are just some of the most notable security vulnerabilities in Docker. It is crucial to keep in mind that new vulnerabilities are constantly discovered, and it is essential to stay up-to-date on the latest threats.