Impact
Unprivileged user accounts with at least one SSH key can read arbitrary files on the system. For instance, they could leak the configuration files that could contain database credentials ([database] *) and [security] SECRET_KEY. Attackers could also exfiltrate TLS certificates, other users' repositories, and the Gogs database when the SQLite driver is enabled.
Patches
Unintended Git options has been ignored for creating tags (https://github.com/gogs/gogs/pull/7872). Users should upgrade to 0.13.1 or the latest 0.14.0+dev.
Workarounds
No viable workaround available, please only grant access to trusted users to your Gogs instance on affected versions.
References
https://www.cve.org/CVERecord?id=CVE-2024-39933