Provide references for CVE-2021-29431.
Where can I find more information about CVE-2021-29431?
References are available at: https://pypi.org/project/matrix-sydent/, https://github.com/matrix-org/sydent/releases/tag/v2.3.0, https://github.com/matrix-org/sydent/security/advisories/GHSA-9jhm-8m8c-c3f4, https://github.com/matrix-org/sydent/commit/9e573348d81df8191bbe8c266c01999c9d57cd5f, https://github.com/matrix-org/sydent/commit/8936925f561b0c352c2fa922d5097d7245aad00a, https://github.com/matrix-org/sydent/commit/3d531ed50d2fd41ac387f36d44d3fb2c62dd22d3, https://github.com/matrix-org/sydent/commit/0f00412017f25619bc36c264b29ea96808bf310a.