EUVD-2026-25282

Mastodon is a free, open-source social network server based on ActivityPub. Prior to v4.5.9, v4.4.16, and v4.3.22, Mastodon allows restricting new user sign-up based on e-mail domain names, and performs basic validation on e-mail addresses, but fails to restrict characters that are interpreted...

Mastodon 安全漏洞

Mastodon is an open-source social networking server based on ActivityPub. Versions of Mastodon prior to 4.5.9, 4.4.16, and 4.3.22 contained security vulnerabilities due to a lack of mechanisms to prevent certain email servers from interpreting characters differently...

PT-2026-34728

Name of the Vulnerable Software and Affected Versions Mastodon versions prior to 4.5.9 Mastodon versions prior to 4.4.16 Mastodon versions prior to 4.3.22 Description Mastodon allows restricting new user sign-up based on e-mail domain names and performs basic validation on e-mail addresses, but i...