Provide references for CVE-2021-3866.
Where can I find more information about CVE-2021-3866?
References are available at: https://huntr.dev/bounties/5f48dac5-e112-4b23-bbbf-cc00ba83bcf2, https://github.com/zulip/zulip/commit/3eb2791c3e9695f7d37ffe84e0c2184fae665cb6, https://blog.zulip.com/2022/01/19/cve-2021-3866/.