Medium severity · published Jul 16, 2026
CVE-2026-47089
An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CI
Cyrus IMAP · cyrusimap
before 3.12.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47089
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47089
www.cyrusimap.org
https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.3.html
www.cyrusimap.org
https://www.cyrusimap.org/imap/download/release-notes/index.html
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