Provide references for CVE-2021-46900.
Where can I find more information about CVE-2021-46900?
References are available at: https://www.sympa.community/security/2021-001.html, https://github.com/sympa-community/sympa-community.github.io/blob/master/security/2021-001.md, https://github.com/sympa-community/sympa/issues/1091.