CVE-2026-42006

dovecot, open-xchange dovecot

TLP:CLEAR

csirt@kutim:~/threat-intel/cve/CVE-2026-42006

Katalog CVE

CVSS 4.3 · Medium EPSS 0,82%

Kerentanan Uncontrolled Resource Consumption pada dovecot, open-xchange dovecot. Skor CVSS 3.1 4.3 (Medium) menurut open-xchange.com.

Deskripsi (NVD)

An attacker can cause uncontrolled memory usage with excessive bracing over IMAP. The fix in CVE-2026-27857 was incomplete, only blocking one way of doing this, so there was still another way left open. In particular, the fix was for closing braces, but you could still use open braces to bypass the limit. Using excessive bracing, attacker can cause memory usage up to configured memory limit. Install fixed version, or configure vsz_limit for imap process to low value. No publicly available exploits are known.

Rincian

Terbit di NVD
12 Mei 2026
Terakhir diubah
3 Agustus 2026
Status NVD
Modified
CVSS 3.1
4.3 (Medium), sumber open-xchange.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-400: Uncontrolled Resource Consumption
CWE-770: Allocation of Resources Without Limits or Throttling
EPSS (30 hari)
0,82% peluang dieksploitasi; lebih tinggi dari 56,2% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
dovecot dovecot Semua versi sebelum 2.4.4
open-xchange dovecot Semua versi sebelum 3.1.5

> 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.