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CVE-2026-23962

HIGH

7.5

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung7.5

SchweregradHIGH

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht1/22/2026

Zuletzt geandert2/2/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

joinmastodon:mastodon

Schwachen (CWE)

CWE-770

Referenzen

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)

IOC Korrelationen

Keine Korrelationen erfasst

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