CVE-2026-27860

LOW

3.7

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.13.7

SeveridadeLOW

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

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado3/27/2026

Ultima modificacao3/30/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-90

Referencias

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

Correlacoes IOC

Sem correlacoes registradas

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