CVE-2026-33173

Katalog CVE

CVSS 5.3 · Medium EPSS 0,39%

Kerentanan Improper Verification of Intent by Broadcast Receiver pada rubyonrails rails. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

24 Maret 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-925: Improper Verification of Intent by Broadcast Receiver

EPSS (30 hari)

0,39% peluang dieksploitasi; lebih tinggi dari 31,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/rails/rails/security/advisories/GHSA-qcfx-2mfw-w4cg advisory vendor
• https://github.com/rails/rails/commit/707c0f1f41f067fdf96d54e99d43b28dfaae7e53 patch
• https://github.com/rails/rails/commit/8fcb934caadc79c8cc4ce53287046d0f67005b3e patch
• https://github.com/rails/rails/commit/d9502f5214e2198245a4c1defe9cd02a7c8057d0 patch
• https://github.com/rails/rails/releases/tag/v7.2.3.1 release notes
• https://github.com/rails/rails/releases/tag/v8.0.4.1 release notes
• https://github.com/rails/rails/releases/tag/v8.1.2.1 release notes