csirt@kutim:~/threat-intel/cve/CVE-2026-34829

Katalog CVE

CVSS 7.5 · High EPSS 0,66%

Kerentanan Uncontrolled Resource Consumption pada rack. Skor CVSS 3.1 7.5 (High) menurut github.com.

Deskripsi (NVD)

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Multipart::Parser only wraps the request body in a BoundedIO when CONTENT_LENGTH is present. When a multipart/form-data request is sent without a Content-Length header, such as with HTTP chunked transfer encoding, multipart parsing continues until end-of-stream with no total size limit. For file parts, the uploaded body is written directly to a temporary file on disk rather than being constrained by the buffered in-memory upload limit. An unauthenticated attacker can therefore stream an arbitrarily large multipart file upload and consume unbounded disk space. This results in a denial of service condition for Rack applications that accept multipart form data. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.

Rincian

Terbit di NVD
2 April 2026
Terakhir diubah
24 Juli 2026
Status NVD
Modified
CVSS 3.1
7.5 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-400: Uncontrolled Resource Consumption
CWE-770: Allocation of Resources Without Limits or Throttling
EPSS (30 hari)
0,66% peluang dieksploitasi; lebih tinggi dari 50,1% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
rack rack Semua versi sebelum 2.2.23
rack rack Versi 3.0.0 hingga sebelum 3.1.21
rack rack Versi 3.2.0 hingga sebelum 3.2.6

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.