CVE-2026-23962
HighSummary
Mastodon to darmowy, otwartoźródłowy serwer sieci społecznościowej oparty na ActivityPub. Wersje Mastodon przed v4.3.18, v4.4.12 i v4.5.5 nie mają ograniczenia co do maksymalnej liczby opcji w ankietach dla zdalnych postów, co pozwala atakującym na tworzenie ankiet z bardzo dużą liczbą opcji, co znacznie zwiększa zużycie zasobów.
Risk Assessment
Atakujący mogą spowodować nieproporcjonalne zużycie zasobów zarówno na serwerach Mastodon, jak i po stronie klientów, co może prowadzić do awarii usługi (Denial of Service).
Recommendation
Zaleca się aktualizację do wersji Mastodon v4.5.5, v4.4.12 lub v4.3.18, które zawierają poprawki eliminujące tę podatność.
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Original NVD description (English source)
Mastodon is a free, open-source social network server based on ActivityPub. Mastodon versions before v4.3.18, v4.4.12, and v4.5.5 do not have a limit on the maximum number of poll options for remote posts, allowing attackers to create polls with a very large amount of options, greatly increasing resource consumption. Depending on the number of poll options, an attacker can cause disproportionate resource usage in both Mastodon servers and clients, potentially causing Denial of Service either server-side or client-side. Mastodon versions v4.5.5, v4.4.12, v4.3.18 are patched.

