CVE Watch3 ago 2026

CVE-2026-47746

Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4, are vulnerable to timing atta

CVSS

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Sin CVSS

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 3 ago 2026 · Última mod.: 3 ago 2026 · CWE-367

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4, are vulnerable to timing attacks during JSON-LD signature validation and the compaction process. Because the JSON-LD parsing context is not shared between signature verification and subsequent processing, the application may trust information that should not be trusted, resulting in a time-of-check to time-of-use (TOCTOU) flaw. This allows an attacker to have fraudulent activities accepted as valid, leading to a loss of integrity. This issue has been fixed in version 2026.5.4.

Referencias oficiales

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