Versions of the Official Alpine Linux Docker images (since v3.3) contain a NULL password for the `root` user. This vulnerability appears to be the result of a regression introduced in December of 2015. Due to the nature of this issue, systems deployed using affected versions of the Alpine Linux container which utilize Linux PAM, or some other mechanism which uses the system shadow file as an authentication database, may accept a NULL password for the `root` user.

Alpine is a scaffolding library in Java. Alpine prior to version 1.10.4 allows Authentication Filter bypass. The AuthenticationFilter relies on the request URI to evaluate if the user is accessing the swagger endpoint. By accessing a URL with a path such as /api/foo;%2fapi%2fswagger the contains condition will hold and will return from the authentication filter without aborting the request. Note that the principal object will not be assigned and therefore the issue wont allow user impersonation. This issue has been fixed in version 1.10.4. There are no known workarounds.

Alpine is a scaffolding library in Java. Alpine prior to version 1.10.4 allows URL access filter bypass. This issue has been fixed in version 1.10.4. There are no known workarounds.

Alpine before 2.25 allows remote attackers to cause a denial of service (application crash) when LIST or LSUB is sent before STARTTLS.

Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Alpine Press Alpine PhotoTile for Pinterest plugin <= 1.3.1 at WordPress.

A vulnerability, which was classified as problematic, has been found in Alpine PhotoTile for Instagram Plugin 1.2.7.7. Affected by this issue is some unknown functionality. The manipulation leads to basic cross site scripting. The attack may be launched remotely.

In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS.

The official drupal docker images before 8.5.10-fpm-alpine (Alpine specific) contain a blank password for a root user. System using the drupal docker container deployed by affected versions of the docker image may allow a remote attacker to achieve root access with a blank password.

The official kong docker images before 1.0.2-alpine (Alpine specific) contain a blank password for a root user. System using the kong docker container deployed by affected versions of the docker image may allow a remote attacker to achieve root access with a blank password.

The official ghost docker images before 2.16.1-alpine (Alpine specific) contain a blank password for a root user. System using the ghost docker container deployed by affected versions of the docker image may allow a remote attacker to achieve root access with a blank password.