Related Vulnerabilities: CVE-2021-35057  

A security issue has been found in HyperKitty before version 1.3.5, where the secret archiver key is vulnerable to timing attacks. This is only exploitable if you can send a request from a approved IP listed in MAILMAN_ARCHIVER_FROM.

Severity Medium

Remote Yes

Type Private key recovery

Description

A security issue has been found in HyperKitty before version 1.3.5, where the secret archiver key is vulnerable to timing attacks. This is only exploitable if you can send a request from a approved IP listed in MAILMAN_ARCHIVER_FROM.

AVG-2003 hyperkitty 1.3.4-2 Medium Vulnerable

https://gitlab.com/mailman/hyperkitty/-/blob/1.3.5/doc/news.rst#security
https://gitlab.com/mailman/hyperkitty/-/issues/387
https://gitlab.com/mailman/hyperkitty/-/merge_requests/354
https://gitlab.com/mailman/hyperkitty/-/commit/b415d29d6cc59b3270c35b03ba3313dd03450271