CVE-2026-27860

LOW

3.7

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung3.7

SchweregradLOW

CVSS VektorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

AngriffsvektorNETWORK

KomplexitatHIGH

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht3/27/2026

Zuletzt geandert3/30/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-90

Referenzen

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

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.