CVE-2026-61910
mediumAn issue was discovered in Cyrus IMAP before 3.12.4.
Vendor / product: Cyrus — imap
An issue was discovered in Cyrus IMAP before 3.12.4. Mailbox/set let a sharee change a special-use role on shared mailboxes. An authenticated user with maySetKeywords on another user's mailbox could change that mailbox's specialuse annotation. This could allow the sharee to change the shared mailbox to perform the archived, snoozed, or other role, which might cause mail mail to be written to the shared mailbox, sharing more content than intended. (This is likely to be an unusual situation, made more unusual because if the target already has an non-shared mailbox with that role, role duplication suppression will prevent the update.)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://cyrusimap.org cve@mitre.org
- https://www.cyrusimap.org/3.12/imap/download/release-notes/3.10/x/3.10.4.html cve@mitre.org
- https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.4.html cve@mitre.org
- https://www.cyrusimap.org/3.12/imap/download/release-notes/3.8/x/3.8.8.html cve@mitre.org