DEBIAN-CVE-2026-47081
An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is an XAPPLEPUSHSERVICE folder existence oracle and push hijack. An authenticated IMAP user could probe for the existence of arbitrary mailboxes on other users' accounts via the XAPPLEPUSHSERVICE command and then create Apple Push Notification Service notifications for new mail in those mailboxes to their own APNS device. This did not leak any data about the content of mailboxes. Instead, a "mailbox has changed" notice would be pushed when the mailbox modseq changed.
DEBIAN-CVE-2026-47081
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-47081
cyrus-imapd
Source reference: /affected/0/package/name
- Affected versions
- 3.6.1-4
Source reference:
/affected/0/versions3.6.1-4+deb12u1Source reference:
/affected/0/versions3.6.1-4+deb12u2Source reference:
/affected/0/versions3.6.1-4+deb12u3Source reference:
/affected/0/versions3.6.1-4+deb12u4Source reference:
/affected/0/versions - Fixed versions
- 3.6.1-4+deb12u5
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
cyrus-imapd
Source reference: /affected/1/package/name
- Affected versions
- 3.10.2-1
Source reference:
/affected/1/versions3.10.2-1+deb13u1Source reference:
/affected/1/versions - Fixed versions
- 3.10.2-1+deb13u2
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
cyrus-imapd
Source reference: /affected/2/package/name
- Affected versions
- 3.10.2-1
Source reference:
/affected/2/versions3.12.0-1Source reference:
/affected/2/versions3.12.0-2Source reference:
/affected/2/versions3.12.1-1Source reference:
/affected/2/versions3.12.1-2Source reference:
/affected/2/versions3.12.1-3Source reference:
/affected/2/versions3.12.2-1Source reference:
/affected/2/versions3.12.3-1~bpo13+1Source reference:
/affected/2/versions - Fixed versions
- 3.12.3-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.1-4+deb12u5"
}
]
}
],
"package": {
"name": "cyrus-imapd",
"purl": "pkg:deb/debian/cyrus-imapd?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"3.6.1-4",
"3.6.1-4+deb12u1",
"3.6.1-4+deb12u2",
"3.6.1-4+deb12u3",
"3.6.1-4+deb12u4"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-47081.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.10.2-1+deb13u2"
}
]
}
],
"package": {
"name": "cyrus-imapd",
"purl": "pkg:deb/debian/cyrus-imapd?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"3.10.2-1",
"3.10.2-1+deb13u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-47081.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.12.3-1"
}
]
}
],
"package": {
"name": "cyrus-imapd",
"purl": "pkg:deb/debian/cyrus-imapd?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.10.2-1",
"3.12.0-1",
"3.12.0-2",
"3.12.1-1",
"3.12.1-2",
"3.12.1-3",
"3.12.2-1",
"3.12.3-1~bpo13+1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-47081.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56590 · Revision 1
- Added to Heist Feed
- Publisher date