CVE Watch16 sept 2026

CVE-2026-61909

An issue was discovered in Cyrus IMAP before 3.12.4. CalDAV/CardDAV multiget bypasses a per-href ACL. An authenticated DAV user with some sh

CVSS

3.5

Bajo

EPSS

0.2%

p10

KEV

—

Exploit Today

0-100

Publicado: 9 sept 2026 · Última mod.: 16 sept 2026 · CWE-420

EPSS · 30d

0.2%EPSS · 30 días0.4%

2026-09-232026-10-21

Descripción técnica

An issue was discovered in Cyrus IMAP before 3.12.4. CalDAV/CardDAV multiget bypasses a per-href ACL. An authenticated DAV user with some shared access to another user's calendar or address book could read even unshared events or contacts by including the target hrefs in a calendar-multiget or addressbook-multiget REPORT.

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