CVE-2026-33869 in Mastodon

Resumen (Inglés)

Mastodon is a free, open-source social network server based on ActivityPub. In versions on the 4.5.x branch prior to 4.5.8 and on the 4.4.x branch prior to 4.4.15, an attacker that knows of a quote before it has reached a server can prevent it from being correctly processed on that server. The vulnerability has been patched in Mastodon 4.5.8 and 4.4.15. Mastodon 4.3 and earlier are not affected because they do not support quotes.

Responsable

GitHub_M

Reservar

2026-03-24

Divulgación

2026-03-27

Voces

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerabilidad	CWE	Exp	Con	CVE
354024	Mastodon escalada de privilegios	863	No está definido	Arreglo oficial	CVE-2026-33869