A denial of service exists in gitlab <v12.3.2, <v12.2.6, and <v12.1.10 that would let an attacker bypass input validation in markdown fields take down the affected page.
A authentication bypass vulnerability exists in GitLab CE/EE <v12.3.2, <v12.2.6, and <v12.1.10 in the Salesforce login integration that could be used by an attacker to create an account that bypassed domain restrictions and email verification requirements.
An improper access control vulnerability exists in Gitlab EE <v12.3.3, <v12.2.7, & <v12.1.13 that allowed the group search feature with Elasticsearch to return private code, merge requests and commits.
An improper access control vulnerability exists in Gitlab <v12.3.2, <v12.2.6, <v12.1.12 which would allow a blocked user would be able to use GIT clone and pull if he had obtained a CI/CD token before.