CVE-2026-27860

LOW

3.7

Descripcion

If auth_username_chars is empty, it is possible to inject arbitrary LDAP filter to Dovecot's LDAP authentication. This leads to potentially bypassing restrictions and allows probing of LDAP structure. Do not clear out auth_username_chars, or install fixed version. No publicly available exploits are known.

Detalles CVE

Puntuacion CVSS v3.13.7

SeveridadLOW

Vector CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Vector de ataqueNETWORK

ComplejidadHIGH

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/27/2026

Ultima modificacion3/27/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-90

Referencias

https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json(security@open-xchange.com)

Correlaciones IOC

Sin correlaciones registradas

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