https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-04T14:50:06.374554+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-218888 EUVD-2026-218888 2026-10-04T14:50:06.437443+00:00 EUVD-2026-218888 https://cve.radiocsirt.org/vuln/fkie_cve-2023-27582 fkie_cve-2023-27582 2026-10-04T14:50:06.437477+00:00

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.

 https://cve.radiocsirt.org/vuln/ghsa-4g76-w3xw-2x6w GHSA-4g76-w3xw-2x6w — Full authentication bypass if SASL authorization username is specified 2026-10-04T14:50:06.437511+00:00

Affected: Go: github.com/foxcpp/maddy

### Impact

maddy 0.2.0 - 0.6.2 allows a full authentication bypass if SASL authorization username is specified when using the PLAIN authentication mechanisms. Instead of validating the specified authorization username, it is accepted as is after checking the credentials for the authentication username.

### Patches

maddy 0.6.3 includes the fix for the bug.

### Workarounds

There is no way to fix the issue without upgrading.

### References

* Commit that introduced the vulnerable code: https://github.com/foxcpp/maddy/commit/55a91a37b71210f34f98f4d327c30308fe24399a * Fix: https://github.com/foxcpp/maddy/commit/9f58cb64b39cdc01928ec463bdb198c4c2313a9c

 https://cve.radiocsirt.org/vuln/gsd-2023-27582 gsd-2023-27582 2026-10-04T14:50:06.437544+00:00 gsd-2023-27582