A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Conan package upload functionality was not properly validating the supplied parameters, which resulted in the limited files disclosure.

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. When 2 factor authentication was enabled for groups, a malicious user could bypass that restriction by sending a specific query to the API endpoint.

For GitLab before 13.0.12, 13.1.6, 13.2.3 a memory exhaustion flaw exists due to excessive logging of an invite email error message.

In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override an existing hash.

User is allowed to set an email as a notification email even without verifying the new email in all previous GitLab CE/EE versions through 13.0.1

A security issue allowed achieving Denial of Service attacks through memory exhaustion by uploading malicious artifacts in all previous GitLab versions through 13.0.1

libpcre in PCRE before 8.44 allows an integer overflow via a large number after a (?C substring.

A Stored Cross-Site Scripting vulnerability allowed the execution of arbitrary Javascript code in the blobs API in all previous GitLab CE/EE versions through 13.0.1

An issue was discovered in GitLab Community Edition (CE) and Enterprise Edition (EE) before 12.7.9, 12.8.x before 12.8.9, and 12.9.x before 12.9.3. A Workhorse bypass could lead to NuGet package and file disclosure (Exposure of Sensitive Information) via request smuggling.

GitLab through 12.9 is affected by a potential DoS in repository archive download.

GitLab before 12.8.2 allows Information Disclosure. Badge images were not being proxied, causing mixed content warnings as well as leaking the IP address of the user.

GitLab before 12.8.2 has Incorrect Access Control. It was internally discovered that the LFS import process could potentially be used to incorrectly access LFS objects not owned by the user.

An issue was discovered in GitLab Community and Enterprise Edition before 12.0.3. One of the parsers used by Gilab CI was vulnerable to a resource exhaustion attack. It allows Uncontrolled Resource Consumption.

GitLab 12.2.2 and below contains a security vulnerability that allows a guest user in a private project to see the merge request ID associated to an issue via the activity timeline.

GitLab through 12.7.2 allows XSS.

GitLab EE 8.0 through 12.7.2 has Incorrect Access Control.

GitLab Community Edition (CE) and Enterprise Edition (EE) through 12.5 has Incorrect Access Control (issue 2 of 2).

GitLab Community Edition (CE) and Enterprise Edition (EE) through 12.5 has Incorrect Access Control (issue 1 of 2).

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.