cve-2026-47777

CVE-2026-47777 — Omisión de Autorización de Colecciones Destacadas en Mastodon Resumen Divulgué de manera responsable una vulnerabilidad de Omisión de Autorización de Alta Gravedad que afecta el pipeline de federación experimental de Colecciones Destacadas de Mastodon. ID de CVE: CVE-2026-47777...

CVE-2026-47777

Mastodon is a free, open-source social network server based on ActivityPub. In versions there is a missing condition in the check if remote accounts consented to be featured in a remote Collection could lead to attackers bypassing the check and faking consent. An attacker could forge the...

EUVD-2026-36742

Mastodon is a free, open-source social network server based on ActivityPub. In versions there is a missing condition in the check if remote accounts consented to be featured in a remote Collection could lead to attackers bypassing the check and faking consent. An attacker could forge the...

CVE-2026-47777 Mastodon has a consent-check bypass in its remote Collections

Mastodon is a free, open-source social network server based on ActivityPub. In versions there is a missing condition in the check if remote accounts consented to be featured in a remote Collection could lead to attackers bypassing the check and faking consent. An attacker could forge the...

CVE-2026-47777

Affected product: Mastodon (open-source social network server). Vulnerable component: remote Collections feature logic for consent verification. Root cause: missing condition to ensure the FeatureAuthorization object on a remote account actually matches the Collection item, allowing forging of co...