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-18017802
- published19 Jul 2026
- disclosed16 Jul 2026
- creditUnknown
Introduced: 16 Jul 2026
CVE-2026-47082 (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 in the fcc process of the vacation feature, which skips the destination mailbox access control list. An attacker can deliver auto-reply copies into any mailbox by specifying its name in the Sieve script, even without insert permissions on the destination mailbox.