CVE-2026-54275: aiohttp

csirt@kutim:~/threat-intel/cve/CVE-2026-54275

CVSS 7.5 · High EPSS 0,47%

Kerentanan Improper Validation of Certificate with Host Mismatch pada aiohttp. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, the server_hostname TLS SNI check can be bypassed when an existing connection is reused. If an application makes multiple requests to the same domain, but with different per-request server_hostname parameters, then the later calls may succeed by reusing the existing connection when they should have been rejected due to the TLS SNI check. This vulnerability is fixed in 3.14.1.

Rincian

Terbit di NVD: 22 Juni 2026
Terakhir diubah: 26 Juni 2026
Status NVD: Analyzed
CVSS 3.1: 7.5 (High), sumber NVD
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-297: Improper Validation of Certificate with Host Mismatch
EPSS (30 hari): 0,47% peluang dieksploitasi; lebih tinggi dari 38,9% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
aiohttp	aiohttp	Semua versi sebelum 3.14.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/aio-libs/aiohttp/security/advisories/GHSA-4m7w-qmgq-4wj5 advisory pihak ketiga

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.