DEBIAN-CVE-2026-61910

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    DEBIAN-CVE-2026-61910

    Published: 9 Sept 2026Last Modified: 10 Sept 2026
    Upstream:
    CVE-2026-61910

    Summary:

    Details: 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.)

    References: https://security-tracker.debian.org/tracker/CVE-2026-61910

    Affected packages

    Package

    Name: cyrus-imapd

    Purl: pkg:deb/debian/cyrus-imapd?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    3.10.0-1
    3.10.0~beta1-1
    3.10.0~beta1-2
    3.10.0~beta1-3
    3.10.0~beta2-1
    3.10.0~rc2-1
    3.10.1-1
    3.10.1-2
    3.10.1-3
    3.10.1-3~bpo12+1
    3.10.2-1
    3.10.2-1~bpo12+1

    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
    DEBIAN-CVE-2026-61910 | CVE-DB