CVE-2026-61910An issue was discovered in Cyrus IMAP before 3.12.4.
Updated under an hour ago ()
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It affects cyrusimap Cyrus IMAP and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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
- 3.5 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
- Weakness (CWE)
- CWE-863
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Sep 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
cyrusimap Cyrus IMAP cyrusimap:cyrus_imap (from the name) | before 3.8.8; from 3.9.0 before 3.10.4; from 3.11.0 before 3.12.4 | CNA record |
cyrus imap cyrus:imap | before 3.8.8; from 3.9.0 before 3.10.4; from 3.11.0 before 3.12.4 | NVD |
References
- https://cyrusimap.orgproduct
- https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.4.htmlrelease-notes
- https://www.cyrusimap.org/3.12/imap/download/release-notes/3.10/x/3.10.4.htmlrelease-notes
- https://www.cyrusimap.org/3.12/imap/download/release-notes/3.8/x/3.8.8.htmlrelease-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.