CVE-2026-57574

Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a vulnerability in Time-based One-Time Password (TOTP) authentication in UserAuthService where insufficient validation of used tokens allows the reuse of a single-use code within its valid time step. If both credentials and a TOTP code are obtained concurrently, an attacker may reuse the code to perform unauthorized actions, potentially leading to account takeover. This issue is fixed in version 2026.6.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/misskey-dev/misskey/commit/00c6210a591db2b0be438740d05b82070fa68ac6
https://github.com/misskey-dev/misskey/commit/d323fe00d04ac46ab0b4e66fce9169effaa8dfb7
https://github.com/misskey-dev/misskey/releases/tag/2026.6.0
https://github.com/misskey-dev/misskey/security/advisories/GHSA-2m5x-5mp6-6vpq

Configurations

No configuration.

History

25 Oct 2026, 15:10

Type	Values Removed	Values Added
Summary		(es) Misskey es una plataforma de redes sociales de código abierto y federada. Antes de la versión 2026.6.0, Misskey contiene una vulnerabilidad en la autenticación de Contraseña de Un Solo Uso Basada en Tiempo (TOTP) en UserAuthService, donde una validación insuficiente de los tokens utilizados permite la reutilización de un código de un solo uso dentro de su paso de tiempo válido. Si tanto las credenciales como un código TOTP se obtienen concurrentemente, un atacante puede reutilizar el código para realizar acciones no autorizadas, lo que podría llevar a la toma de control de la cuenta. Este problema está solucionado en la versión 2026.6.0.

Information

Published : 2026-07-10 21:16

Updated : 2026-10-25 15:10

NVD link : CVE-2026-57574

Mitre link : CVE-2026-57574

CVE.ORG link : CVE-2026-57574

JSON object : View

Products Affected

No product.

CWE

CWE-294

Authentication Bypass by Capture-replay

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