Missing Authorization Affecting cyrus-imapd package, versions <3.12.3-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.28% (21st percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-CYRUSIMAPD-18001339
  • published17 Jul 2026
  • disclosed16 Jul 2026

Introduced: 16 Jul 2026

CVE-2026-47089  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

Upgrade Debian:unstable cyrus-imapd to version 3.12.3-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cyrus-imapd package and not the cyrus-imapd package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. LISTRIGHTS os not limited to users with admin access. An authenticated user could call IMAP LISTRIGHTS against any mailbox they could name and learn what principals had what access to it. (This action should have been restricted to users with admin access on the target mailbox.)

CVSS Base Scores

version 3.1