UBUNTU-CVE-2026-47083

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Source
https://ubuntu.com/security/CVE-2026-47083
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47083.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-47083
Upstream
  • CVE-2026-47083
Published
2026-07-16T19:16:00Z
Modified
2026-07-29T07:58:05Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is an ESEARCH cross-user content oracle. By using the ESEARCH command, an authenticated IMAP user could enumerate folder names under any account they could name. Search would return UIDs of messages matching the search, creating a content oracle (without allowing arbitrary reads of the target's content).

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
0Unknown 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_version": "2.5.10-3ubuntu1.1+esm1",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47083.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
0Unknown 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_version": "3.0.13-5ubuntu0.1~esm2",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47083.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
0Unknown 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_version": "3.4.3-3ubuntu0.3+esm1",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47083.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
0Unknown 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_version": "3.8.2-1ubuntu0.2+esm1",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47083.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
0Unknown 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_version": "3.12.1-3",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47083.json"