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OpenAdvisories
Critical · 9.4 CVE-2024-23832 EUVD-2024-21275

Mastodon Remote user impersonation and takeover

Published Feb 1, 2024 · Updated Feb 13, 2025 · Assigned by GitHub_M

Description

Mastodon is a free, open-source social network server based on ActivityPub Mastodon allows configuration of LDAP for authentication. Due to insufficient origin validation in all Mastodon, attackers can impersonate and take over any remote account. Every Mastodon version prior to 3.5.17 is vulnerable, as well as 4.0.x versions prior to 4.0.13, 4.1.x version prior to 4.1.13, and 4.2.x versions prior to 4.2.5.

Affected products

VendorProductAffectedFixed
mastodon mastodon < 3.5.17, >= 4.0.0, < 4.0.13, >= 4.1.0, < 4.1.13, >= 4.2.0, < 4.2.5 —

References