Gitlab · Gitlab Ce/Ee · CVE-2018-17452
**Name of the Vulnerable Software and Affected Versions**
GitLab Community and Enterprise Edition versions 11.1.0 through 11.1.7
GitLab Community and Enterprise Edition versions 11.2.0 through 11.2.4
GitLab Community and Enterprise Edition versions 11.3.0 through 11.3.1
**Description**
An issue was discovered that allows Server-Side Request Forgery (SSRF) via a loopback address to the `validate localhost` function in `url blocker.rb`.
**Recommendations**
For GitLab Community and Enterprise Edition versions 11.1.0 through 11.1.7, update to version 11.1.7 or later.
For GitLab Community and Enterprise Edition versions 11.2.0 through 11.2.4, update to version 11.2.4 or later.
For GitLab Community and Enterprise Edition versions 11.3.0 through 11.3.1, update to version 11.3.1 or later.