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CVE-2026-23962

HIGH

7.5

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.17.5

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado1/22/2026

Ultima modificacion2/2/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

joinmastodon:mastodon

Debilidades (CWE)

CWE-770

Referencias

https://github.com/mastodon/mastodon/releases/tag/v4.3.18(security-advisories@github.com)

https://github.com/mastodon/mastodon/releases/tag/v4.4.12(security-advisories@github.com)

https://github.com/mastodon/mastodon/releases/tag/v4.5.5(security-advisories@github.com)

https://github.com/mastodon/mastodon/security/advisories/GHSA-gg8q-rcg7-p79g(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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