csirt@kutim:~/threat-intel/cve/CVE-2026-27205

Katalog CVE

CVSS 4.3 · Medium EPSS 0,43%

Kerentanan Use of Cache Containing Sensitive Information pada palletsprojects flask. Skor CVSS 3.1 4.3 (Medium) menurut NVD.

Deskripsi (NVD)

Flask is a web server gateway interface (WSGI) web application framework. In versions 3.1.2 and below, when the session object is accessed, Flask should set the Vary: Cookie header., resulting in a Use of Cache Containing Sensitive Information vulnerability. The logic instructs caches not to cache the response, as it may contain information specific to a logged in user. This is handled in most cases, but some forms of access such as the Python in operator were overlooked. The severity and risk depend on the application being hosted behind a caching proxy that doesn't ignore responses with cookies, not setting a Cache-Control header to mark pages as private or non-cacheable, and accessing the session in a way that only touches keys without reading values or mutating the session. The issue has been fixed in version 3.1.3.

Rincian

Terbit di NVD
21 Februari 2026
Terakhir diubah
17 Juni 2026
Status NVD
Analyzed
CVSS 3.1
4.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-524: Use of Cache Containing Sensitive Information
EPSS (30 hari)
0,43% peluang dieksploitasi; lebih tinggi dari 35,7% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
palletsprojects flask Semua versi sebelum 3.1.3

> 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.