DEBIAN-CVE-2026-47088
An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is heap exposure in nested MIME comment parsing. An authenticated IMAP user could craft an email message containing an RFC 822 comment ending with a backslash. When parsing the message, the server would read past the message's end in memory, and read into the heap, returning the read content to the user.
DEBIAN-CVE-2026-47088
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-2026-47088
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-2026-47088.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-2026-47088.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-2026-47088.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56588 · Revision 1
- Added to Heist Feed
- Publisher date