CVE-2026-33173 in activestorage
Сводка (Английский)
Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, `DirectUploadsController` accepts arbitrary metadata from the client and persists it on the blob. Because internal flags like `identified` and `analyzed` are stored in the same metadata hash, a direct-upload client can set these flags to skip MIME detection and analysis. This allows an attacker to upload arbitrary content while claiming a safe `content_type`, bypassing any validations that rely on Active Storage's automatic content type identification. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.
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Ответственный
GitHub_M
Резервировать
17.03.2026
Раскрытие
24.03.2026
Статус
Подтверждённый
Записи
VulDB provides additional information and datapoints for this CVE:
| ИД | Уязвимость | CWE | Экс | Кон | CVE |
|---|---|---|---|---|---|
| 352627 | rails activestorage DirectUploadsController | 925 | Не определено | Официальное исправление | CVE-2026-33173 |