DEBIAN-CVE-2026-33215
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The nats-server provides an MQTT client interface. Prior to versions 2.11.15 and 2.12.5, Sessions and Messages can by hijacked via MQTT Client ID malfeasance. Versions 2.11.15 and 2.12.5 patch the issue. No known workarounds are available.
DEBIAN-CVE-2026-33215
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-2026-33215
nats-server
Source reference: /affected/0/package/name
- Affected versions
- 2.10.1-1
Source reference:
/affected/0/versions2.10.16-1Source reference:
/affected/0/versions2.10.18-1Source reference:
/affected/0/versions2.10.24-1Source reference:
/affected/0/versions2.10.27-1Source reference:
/affected/0/versions2.10.3-1Source reference:
/affected/0/versions2.10.4-1Source reference:
/affected/0/versions2.10.7-1Source reference:
/affected/0/versions2.12.4-1Source reference:
/affected/0/versions2.12.6-1Source reference:
/affected/0/versions2.14.1-1Source reference:
/affected/0/versions2.14.3-1Source reference:
/affected/0/versions2.14.6-1Source reference:
/affected/0/versions2.9.10-1Source reference:
/affected/0/versions2.9.19-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
nats-server
Source reference: /affected/1/package/name
- Affected versions
- 2.10.27-1
Source reference:
/affected/1/versions2.12.4-1Source reference:
/affected/1/versions2.12.6-1Source reference:
/affected/1/versions2.14.1-1Source reference:
/affected/1/versions2.14.3-1Source reference:
/affected/1/versions2.14.6-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
nats-server
Source reference: /affected/2/package/name
- Affected versions
- 2.10.27-1
Source reference:
/affected/2/versions2.12.4-1Source reference:
/affected/2/versions - Fixed versions
- 2.12.6-1
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"
}
]
}
],
"package": {
"name": "nats-server",
"purl": "pkg:deb/debian/nats-server?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2.10.1-1",
"2.10.16-1",
"2.10.18-1",
"2.10.24-1",
"2.10.27-1",
"2.10.3-1",
"2.10.4-1",
"2.10.7-1",
"2.12.4-1",
"2.12.6-1",
"2.14.1-1",
"2.14.3-1",
"2.14.6-1",
"2.9.10-1",
"2.9.19-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33215.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "nats-server",
"purl": "pkg:deb/debian/nats-server?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2.10.27-1",
"2.12.4-1",
"2.12.6-1",
"2.14.1-1",
"2.14.3-1",
"2.14.6-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33215.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.12.6-1"
}
]
}
],
"package": {
"name": "nats-server",
"purl": "pkg:deb/debian/nats-server?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.10.27-1",
"2.12.4-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33215.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56782 · Revision 1
- Added to Heist Feed
- Publisher date