Incorrect Authorization Affecting cyrusimap/cyrus-imapd package, versions [,3.12.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UNMANAGED-CYRUSIMAPCYRUSIMAPD-18017806
- published19 Jul 2026
- disclosed16 Jul 2026
- creditUnknown
Introduced: 16 Jul 2026
CVE-2026-47086 (opens in a new tab)How to fix?
Upgrade cyrusimap/cyrus-imapd to version 3.12.3 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Authorization via the GENURLAUTH command. An attacker can access mailbox contents without proper permissions by generating URLAUTH tokens for any mailbox they can name, even if they do not have read access.