csirt@kutim:~/threat-intel/cve/CVE-2026-34827

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. From versions 3.0.0.beta1 to before 3.1.21, and 3.2.0 to before 3.2.6, Rack::Multipart::Parser#handle_mime_head parses quoted multipart parameters such as Content-Disposition: form-data; name="..." using repeated String#index searches combined with String#slice! prefix deletion. For escape-heavy quoted values, this causes super-linear processing. An unauthenticated attacker can send a crafted multipart/form-data request containing many parts with long backslash-escaped parameter values to trigger excessive CPU usage during multipart parsing. This results in a denial of service condition in Rack applications that accept multipart form data. This issue has been patched in versions 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-407: Inefficient Algorithmic Complexity
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 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.