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    CVE-2026-47082

    An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. The vacation "fcc" feature skips the destination-mailbox ACL. A user whose vacation Sieve script used :fcc (to save a copy of the sent message) could deliver vacation auto-reply copies into any mailbox the script could name, regardless of whether the script owner had insert permissions on the destination mailbox.

    Published:Jul 16, 2026
    Last Modified:Jul 16, 2026
    EPS:Jul 16, 2026
    EPSS Score:0.00176
    CVSS Score:5.4

    Affected Products

    Vendor
    Cyrusimap
    Product
    Cyrus Imap

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-81 Web Server Logs Tampering

    Related CVEs

    CVE-2026-61910 (CVSS 3.5) — An issue was discovered in Cyrus IMAP before 3.12.4. Mailbox/set let a sharee change a special-use role on sha…
    CVE-2026-61907 (CVSS 4.3) — An issue was discovered in Cyrus IMAP before 3.12.4. JMAP snooze bypasses the destination-mailbox ACL. An auth…
    CVE-2026-61909 (CVSS 3.5) — An issue was discovered in Cyrus IMAP before 3.12.4. CalDAV/CardDAV multiget bypasses a per-href ACL. An authe…
    CVE-2026-61908 (CVSS 3.1) — An issue was discovered in Cyrus IMAP before 3.12.4. A JMAP email-header blob ID can reference an out-of-bound…
    CVE-2026-61911 (CVSS 4.3) — An issue was discovered in Cyrus IMAP before 3.12.4. There is a Sieve mailbox existence oracle. An authenticat…
    CVE-2026-61915 (CVSS 4.2) — An issue was discovered in Cyrus IMAP before 3.12.4. There is a VPATCH BYPARAM double-free. An authenticated c…
    CVE-2026-47087 (CVSS 3.5) — An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. URLAUTH does not honor revoked authorizer…
    CVE-2026-47088 (CVSS 3.1) — An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is heap exposure in nested MIME com…
    CVE-2026-47086 (CVSS 3.5) — An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. GENURLAUTH-issued tokens can bypass ACLs.…
    CVE-2026-47089 (CVSS 4.3) — An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. LISTRIGHTS os not limited to users with a…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High