UBUNTU-CVE-2026-61909

    Dashboard / Vulnerabilities / UBUNTU-CVE-2026-61909

    UBUNTU-CVE-2026-61909

    Published: 9 Sept 2026Last Modified: 11 Sept 2026
    Upstream:

    Summary:

    Details: CalDAV/CardDAV multiget bypasses 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.

    Affected packages

    Package

    Name: cyrus-imapd

    Purl: pkg:deb/ubuntu/cyrus-imapd?arch=source&distro=esm-apps%2Fbionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.5.10-3build1
    2.5.10-3build2
    2.5.10-3ubuntu1
    2.5.10-3ubuntu1.1
    2.5.10-3ubuntu1.1+esm1

    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
    UBUNTU-CVE-2026-61909 | CVE-DB