GitLab 10.0.4, 9.5.9 and 9.4.7 release, fix multiple vulnerabilities

Software

GitLab Community Edition (CE) and Enterprise Edition (EE) versions 10.0.4, 9.5.9 and 9.4.7 were released.

These versions contain several security fixes, including two persistent cross-site scripting (XSS) vulnerability fixes, an open redirect vulnerability, and a change in the username that may leave behind and reveal possible problems in the private issue name Information leaks and security updates for Ruby and libxml2.

Cross-site scripting (XSS) vulnerability in the Markdown editor

  • The filter does not properly strip the invalid characters from the URL scheme and is therefore vulnerable to any persistent XSS attacks supported by Markdown. #38267

Cross-site scripting (XSS) vulnerability in the search bar

  • The username is not escaped correctly by the HTML, and the filter will allow arbitrary script execution. #37715

Involved version

Cross-Site Scripting (XSS) vulnerability in markdown:

  • GitLab CE + EE 2.8.0-9.4.6, 9.5.0-9.5.8, 10.0.0-10.0.3

Cross-Site Scripting (XSS) vulnerability in search bar

  • GitLab CE + EE 9.3.0-9.4.6, 9.5.0-9.5.8, 10.0.0-10.0.3

Open redirect in repository git redirects

  • GitLab CE + EE 9.2.0-9.4.6, 9.5.0-9.5.8, 10.0.0-10.0.3

Username changes could leave repositories behind

  • GitLab CE + EE 9.5.0-9.5.8, 10.0.0-10.0.3

Confidential issue names could leak in “related issues” feature

  • GitLab EE 9.4.0-9.4.6, 9.5.0-9.5.8, 10.0.0-10.0.3

Ruby update

  • GitLab CE + EE 8.14.0-9.4.6, 9.5.0-9.5.8, 10.0.0-10.0.3

Libxml2 update

  • GitLab CE + EE 1.1.1-9.4.6, 9.5.0-9.5.8, 10.0.0-10.0.3

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