CVE-2026-61909
An issue was discovered in Cyrus IMAP before 3.12.4. CalDAV/CardDAV multiget bypasses a per-href ACL. An authenticated DAV user with some shared access to another user's calendar or address book could read even unshared events or contacts by including the target hrefs in a calendar-multiget or addressbook-multiget REPORT.
Scoring
- Severity
- LOW
- CVSS base score
- 3.5
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
- CWE
- CWE-420
- Published
- 2026-09-09
- Last modified
- 2026-09-09
Affected products
- cyrusimap Cyrus IMAP
- cyrusimap Cyrus IMAP
- cyrusimap Cyrus IMAP
Weakness type
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