CVE-2026-34582: botan project botan

csirt@kutim:~/threat-intel/cve/CVE-2026-34582

CVSS 9.1 · Critical EPSS 0,38%

Kerentanan Improper Enforcement of Behavioral Workflow pada botan project botan. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

Botan is a C++ cryptography library. Prior to version 3.11.1, the TLS 1.3 implementation allowed ApplicationData records to be processed prior to the Finished message being received. A server which is attempting to enforce client authentication via certificates can by bypassed by a client which entirely omits Certificate, CertificateVerify, and the Finished message and instead sends application data records. This vulnerability is fixed in 3.11.1.

Rincian

Terbit di NVD: 7 April 2026
Terakhir diubah: 24 Juli 2026
Status NVD: Modified
CVSS 3.1: 9.1 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-841: Improper Enforcement of Behavioral Workflow
CWE-166: Improper Handling of Missing Special Element
EPSS (30 hari): 0,38% peluang dieksploitasi; lebih tinggi dari 29,9% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
botan project	botan	Versi 3.0.0 hingga 3.11.0

> 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.