csirt@kutim:~/threat-intel/cve/CVE-2021-33026

Katalog CVE

CVSS 9.8 · Critical EPSS 7,3%

Kerentanan Deserialization of Untrusted Data pada flask-caching project flask-caching. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

The Flask-Caching extension through 1.10.1 for Flask relies on Pickle for serialization, which may lead to remote code execution or local privilege escalation. If an attacker gains access to cache storage (e.g., filesystem, Memcached, Redis, etc.), they can construct a crafted payload, poison the cache, and execute Python code. NOTE: a third party indicates that exploitation is extremely unlikely unless the machine is already compromised; in other cases, the attacker would be unable to write their payload to the cache and generate the required collision

Rincian

Terbit di NVD
13 Mei 2021
Terakhir diubah
17 Juni 2026
Status NVD
Modified
CVSS 3.1
9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-502: Deserialization of Untrusted Data
EPSS (30 hari)
7,3% peluang dieksploitasi; lebih tinggi dari 94,2% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
flask-caching project flask-caching Semua versi hingga 1.10.1

> 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, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.