CVE-2026-47086
CVSS Score
3.5
EPSS Score
0.0%
EPSS Percentile
0th
An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. GENURLAUTH-issued tokens can bypass ACLs. Any authenticated user could mint a URLAUTH token (via the GENURLAUTH command) for any mailbox they could name, even without read access on it. This would allow reading mail from mailboxes despite having no granted permissions.
| CWE | CWE-863 |
| Vendor | cyrusimap |
| Product | cyrus imap |
| Published | Jul 16, 2026 |
| Last Updated | Jul 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
cyrusimap / Cyrus IMAP
0 < 3.12.3