UBUNTU-CVE-2026-61910

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Source
https://ubuntu.com/security/CVE-2026-61910
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61910.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-61910
Upstream
  • CVE-2026-61910
Published
2026-09-09T14:00:00Z
Modified
2026-09-11T15:00:37Z
Severity
  • 3.5 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Mailbox/set let sharee change 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 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

Affected packages

Ubuntu:Pro:18.04:LTS / cyrus-imapd

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.5.10-3build1
2.5.10-3build2
2.5.10-3ubuntu1
2.5.10-3ubuntu1.1
2.5.10-3ubuntu1.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cyrus-admin",
            "binary_version": "2.5.10-3ubuntu1.1+esm1"
        },
        {
            "binary_name": "cyrus-caldav",
            "binary_version": "2.5.10-3ubuntu1.1+esm1"
        },
        {
            "binary_name": "cyrus-clients",
            "binary_version": "2.5.10-3ubuntu1.1+esm1"
        },
        {
            "binary_name": "cyrus-common",
            "binary_version": "2.5.10-3ubuntu1.1+esm1"
        },
        {
            "binary_name": "cyrus-imapd",
            "binary_version": "2.5.10-3ubuntu1.1+esm1"
        },
        {
            "binary_name": "cyrus-murder",
            "binary_version": "2.5.10-3ubuntu1.1+esm1"
        },
        {
            "binary_name": "cyrus-nntpd",
            "binary_version": "2.5.10-3ubuntu1.1+esm1"
        },
        {
            "binary_name": "cyrus-pop3d",
            "binary_version": "2.5.10-3ubuntu1.1+esm1"
        },
        {
            "binary_name": "cyrus-replication",
            "binary_version": "2.5.10-3ubuntu1.1+esm1"
        },
        {
            "binary_name": "libcyrus-imap-perl",
            "binary_version": "2.5.10-3ubuntu1.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61910.json"

Ubuntu:Pro:20.04:LTS / cyrus-imapd

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.0.11-1
3.0.11-1build1
3.0.12-1
3.0.12-2
3.0.12-2ubuntu2
3.0.12-2ubuntu3
3.0.13-2ubuntu1
3.0.13-3ubuntu1
3.0.13-4ubuntu1
3.0.13-5
3.0.13-5ubuntu0.1~esm1
3.0.13-5ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cyrus-admin",
            "binary_version": "3.0.13-5ubuntu0.1~esm2"
        },
        {
            "binary_name": "cyrus-caldav",
            "binary_version": "3.0.13-5ubuntu0.1~esm2"
        },
        {
            "binary_name": "cyrus-clients",
            "binary_version": "3.0.13-5ubuntu0.1~esm2"
        },
        {
            "binary_name": "cyrus-common",
            "binary_version": "3.0.13-5ubuntu0.1~esm2"
        },
        {
            "binary_name": "cyrus-imapd",
            "binary_version": "3.0.13-5ubuntu0.1~esm2"
        },
        {
            "binary_name": "cyrus-murder",
            "binary_version": "3.0.13-5ubuntu0.1~esm2"
        },
        {
            "binary_name": "cyrus-nntpd",
            "binary_version": "3.0.13-5ubuntu0.1~esm2"
        },
        {
            "binary_name": "cyrus-pop3d",
            "binary_version": "3.0.13-5ubuntu0.1~esm2"
        },
        {
            "binary_name": "cyrus-replication",
            "binary_version": "3.0.13-5ubuntu0.1~esm2"
        },
        {
            "binary_name": "libcyrus-imap-perl",
            "binary_version": "3.0.13-5ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61910.json"

Ubuntu:Pro:22.04:LTS / cyrus-imapd

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.2.6-2build1
3.4.2-2
3.4.2-2build1
3.4.3-2
3.4.3-3
3.4.3-3build2
3.4.3-3ubuntu0.1
3.4.3-3ubuntu0.1+esm1
3.4.3-3ubuntu0.3
3.4.3-3ubuntu0.3+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cyrus-admin",
            "binary_version": "3.4.3-3ubuntu0.3+esm1"
        },
        {
            "binary_name": "cyrus-caldav",
            "binary_version": "3.4.3-3ubuntu0.3+esm1"
        },
        {
            "binary_name": "cyrus-clients",
            "binary_version": "3.4.3-3ubuntu0.3+esm1"
        },
        {
            "binary_name": "cyrus-common",
            "binary_version": "3.4.3-3ubuntu0.3+esm1"
        },
        {
            "binary_name": "cyrus-imapd",
            "binary_version": "3.4.3-3ubuntu0.3+esm1"
        },
        {
            "binary_name": "cyrus-murder",
            "binary_version": "3.4.3-3ubuntu0.3+esm1"
        },
        {
            "binary_name": "cyrus-nntpd",
            "binary_version": "3.4.3-3ubuntu0.3+esm1"
        },
        {
            "binary_name": "cyrus-pop3d",
            "binary_version": "3.4.3-3ubuntu0.3+esm1"
        },
        {
            "binary_name": "cyrus-replication",
            "binary_version": "3.4.3-3ubuntu0.3+esm1"
        },
        {
            "binary_name": "libcyrus-imap-perl",
            "binary_version": "3.4.3-3ubuntu0.3+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61910.json"

Ubuntu:Pro:24.04:LTS / cyrus-imapd

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.8.0-5
3.8.1-1
3.8.1-1build1
3.8.1-1build2
3.8.1-3
3.8.1-3build3
3.8.2-1
3.8.2-1ubuntu0.1~esm1
3.8.2-1ubuntu0.2
3.8.2-1ubuntu0.2+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cyrus-admin",
            "binary_version": "3.8.2-1ubuntu0.2+esm1"
        },
        {
            "binary_name": "cyrus-caldav",
            "binary_version": "3.8.2-1ubuntu0.2+esm1"
        },
        {
            "binary_name": "cyrus-clients",
            "binary_version": "3.8.2-1ubuntu0.2+esm1"
        },
        {
            "binary_name": "cyrus-common",
            "binary_version": "3.8.2-1ubuntu0.2+esm1"
        },
        {
            "binary_name": "cyrus-imapd",
            "binary_version": "3.8.2-1ubuntu0.2+esm1"
        },
        {
            "binary_name": "cyrus-murder",
            "binary_version": "3.8.2-1ubuntu0.2+esm1"
        },
        {
            "binary_name": "cyrus-nntpd",
            "binary_version": "3.8.2-1ubuntu0.2+esm1"
        },
        {
            "binary_name": "cyrus-pop3d",
            "binary_version": "3.8.2-1ubuntu0.2+esm1"
        },
        {
            "binary_name": "cyrus-replication",
            "binary_version": "3.8.2-1ubuntu0.2+esm1"
        },
        {
            "binary_name": "libcyrus-imap-perl",
            "binary_version": "3.8.2-1ubuntu0.2+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61910.json"

Ubuntu:26.04:LTS / cyrus-imapd

Package

Name
cyrus-imapd
Purl
pkg:deb/ubuntu/cyrus-imapd?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.10.2-1
3.12.1-2
3.12.1-2build1
3.12.1-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cyrus-admin",
            "binary_version": "3.12.1-3"
        },
        {
            "binary_name": "cyrus-caldav",
            "binary_version": "3.12.1-3"
        },
        {
            "binary_name": "cyrus-clients",
            "binary_version": "3.12.1-3"
        },
        {
            "binary_name": "cyrus-common",
            "binary_version": "3.12.1-3"
        },
        {
            "binary_name": "cyrus-imapd",
            "binary_version": "3.12.1-3"
        },
        {
            "binary_name": "cyrus-murder",
            "binary_version": "3.12.1-3"
        },
        {
            "binary_name": "cyrus-nntpd",
            "binary_version": "3.12.1-3"
        },
        {
            "binary_name": "cyrus-pop3d",
            "binary_version": "3.12.1-3"
        },
        {
            "binary_name": "cyrus-replication",
            "binary_version": "3.12.1-3"
        },
        {
            "binary_name": "libcyrus-imap-perl",
            "binary_version": "3.12.1-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61910.json"