csirt@kutim:~/threat-intel/cve/CVE-2026-34580

Katalog CVE

CVSS 7.5 · High EPSS 0,32%

Kerentanan Improper Certificate Validation pada botan project botan. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

Botan is a C++ cryptography library. In 3.11.0, the function Certificate_Store::certificate_known had a misleading name; it would return true if any certificate in the store had a DN (and subject key identifier, if set) matching that of the argument. It did not check that the cert it found and the cert it was passed were actually the same certificate. In 3.11.0 an extension of path validation logic was made which assumed that certificate_known only returned true if the certificates were in fact identical. The impact is that if an end entity certificate is presented, and its DN (and subject key identifier, if set) match that of any trusted root, the end entity certificate is accepted immediately as if it itself were a trusted root. , 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
7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-295: Improper Certificate Validation
EPSS (30 hari)
0,32% peluang dieksploitasi; lebih tinggi dari 23,0% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
botan project botan Versi 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.