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CVE-2026-23962

HIGH

7.5

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.17.5

SeveridadeHIGH

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado1/22/2026

Ultima modificacao2/2/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

joinmastodon:mastodon

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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