CVE-2026-42008

Katalog CVE

CVSS 4.3 · Medium EPSS 0,24%

Kerentanan Improper Authentication. Skor CVSS 3.1 4.3 (Medium) menurut open-xchange.com.

Deskripsi (NVD)

Forwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentication fields, so a value sent by that host can be injected as an internal authentication field. Any host permitted to act as a trusted proxy can authenticate as any user without knowing that user's password. This affects deployments whose password database honours a field that permits authentication without a password. Deployments that do not configure trusted proxies are not affected. Restrict the list of trusted proxy networks to hosts that are fully under your control. Update to non-vulnerable version. No publicly available exploits are known.

Rincian

Terbit di NVD

28 Agustus 2026

Terakhir diubah

3 September 2026

Status NVD

Deferred

CVSS 3.1

4.3 (Medium), sumber open-xchange.com
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-287: Improper Authentication

EPSS (30 hari)

0,24% peluang dieksploitasi; lebih tinggi dari 13,4% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0003.json