CVE-2023-27582 Information

Description

maddy is a composable all-in-one mail server. Starting with version 0.2.0 and prior to version 0.6.3 maddy allows a full authentication bypass if SASL authorization username is specified when using the PLAIN authentication mechanisms. Instead of validating the specified username it is accepted as is after checking the credentials for the authentication username. maddy 0.6.3 includes the fix for the bug. There are no known workarounds.

Reference

https://github.com/foxcpp/maddy/security/advisories/GHSA-4g76-w3xw-2x6w https://github.com/foxcpp/maddy/releases/tag/v0.6.3 https://github.com/foxcpp/maddy/commit/55a91a37b71210f34f98f4d327c30308fe24399a https://github.com/foxcpp/maddy/commit/9f58cb64b39cdc01928ec463bdb198c4c2313a9c