CVE-2026-47082

Published: Jul 16, 2026Modified: Jul 17, 2026Deferred

5.4

Vector

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

Exploitability: 2.8 / Impact: 2.5

Source: MITRE (Secondary)

Description

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. The vacation "fcc" feature skips the destination-mailbox ACL. A user whose vacation Sieve script used :fcc (to save a copy of the sent message) could deliver vacation auto-reply copies into any mailbox the script could name, regardless of whether the script owner had insert permissions on the destination mailbox.

Related CWEs

CWE-863

Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (2)

https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.3.html

Source: cve@mitre.org

https://www.cyrusimap.org/imap/download/release-notes/index.html

Source: cve@mitre.org

Timeline

No history available yet.