AI Summary

A security researcher has published a proof-of-concept exploit that takes advantage of a vulnerability in unpatched self-managed GitLab servers. The exploit, which affects GitLab 18.11.3, allows an authenticated user to run commands as the 'git' user without needing administrator rights or continuous integration runner access. This is achieved by committing two specifically crafted Jupyter notebooks and requesting their diff. The vulnerability's significance lies in its ability to be triggered by an ordinary authenticated user, making it a potential risk for organizations using self-managed GitLab servers.

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