DEBIAN-CVE-2026-44283
etcd is a distributed key-value store for the data of a distributed system. Prior to 3.4.44, 3.5.30, and 3.6.11, a vulnerability in etcd allows read access via PrevKv, or lease attachment in Put requests within transaction operations, to bypass RBAC authorization checks. An authenticated user without sufficient read or lease-related permissions may be able to access unauthorized data or attach leases by invoking transaction operations with these features enabled. This vulnerability is fixed in 3.4.44, 3.5.30, and 3.6.11.
DEBIAN-CVE-2026-44283
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-2026-44283
etcd
Source reference: /affected/0/package/name
- Affected versions
- 3.4.23-4
Source reference:
/affected/0/versions3.4.23-5Source reference:
/affected/0/versions3.4.23-6Source reference:
/affected/0/versions3.4.30-1Source reference:
/affected/0/versions3.4.30-2Source reference:
/affected/0/versions3.4.30-3Source reference:
/affected/0/versions3.5.15-1Source reference:
/affected/0/versions3.5.15-2Source reference:
/affected/0/versions3.5.15-3Source reference:
/affected/0/versions3.5.15-4Source reference:
/affected/0/versions3.5.15-5Source reference:
/affected/0/versions3.5.15-6Source reference:
/affected/0/versions3.5.15-7Source reference:
/affected/0/versions3.5.16-1Source reference:
/affected/0/versions3.5.16-10Source reference:
/affected/0/versions3.5.16-11Source reference:
/affected/0/versions3.5.16-2Source reference:
/affected/0/versions3.5.16-3Source reference:
/affected/0/versions3.5.16-4Source reference:
/affected/0/versions3.5.16-5Source reference:
/affected/0/versions3.5.16-6Source reference:
/affected/0/versions3.5.16-7Source reference:
/affected/0/versions3.5.16-8Source reference:
/affected/0/versions3.5.16-9Source reference:
/affected/0/versions3.5.22-1Source reference:
/affected/0/versions3.5.22-2Source reference:
/affected/0/versions3.5.30-1~exp1Source reference:
/affected/0/versions3.5.30-1~exp2Source reference:
/affected/0/versions3.5.30-2Source reference:
/affected/0/versions3.5.5-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
etcd
Source reference: /affected/1/package/name
- Affected versions
- 3.5.16-10
Source reference:
/affected/1/versions3.5.16-11Source reference:
/affected/1/versions3.5.16-4Source reference:
/affected/1/versions3.5.16-5Source reference:
/affected/1/versions3.5.16-6Source reference:
/affected/1/versions3.5.16-7Source reference:
/affected/1/versions3.5.16-8Source reference:
/affected/1/versions3.5.16-9Source reference:
/affected/1/versions3.5.22-1Source reference:
/affected/1/versions3.5.22-2Source reference:
/affected/1/versions3.5.30-1~exp1Source reference:
/affected/1/versions3.5.30-1~exp2Source reference:
/affected/1/versions3.5.30-2Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
etcd
Source reference: /affected/2/package/name
- Affected versions
- 3.5.16-10
Source reference:
/affected/2/versions3.5.16-4Source reference:
/affected/2/versions3.5.16-5Source reference:
/affected/2/versions3.5.16-6Source reference:
/affected/2/versions3.5.16-7Source reference:
/affected/2/versions3.5.16-8Source reference:
/affected/2/versions3.5.16-9Source reference:
/affected/2/versions - Fixed versions
- 3.5.16-11
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": "etcd",
"purl": "pkg:deb/debian/etcd?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"3.4.23-4",
"3.4.23-5",
"3.4.23-6",
"3.4.30-1",
"3.4.30-2",
"3.4.30-3",
"3.5.15-1",
"3.5.15-2",
"3.5.15-3",
"3.5.15-4",
"3.5.15-5",
"3.5.15-6",
"3.5.15-7",
"3.5.16-1",
"3.5.16-10",
"3.5.16-11",
"3.5.16-2",
"3.5.16-3",
"3.5.16-4",
"3.5.16-5",
"3.5.16-6",
"3.5.16-7",
"3.5.16-8",
"3.5.16-9",
"3.5.22-1",
"3.5.22-2",
"3.5.30-1~exp1",
"3.5.30-1~exp2",
"3.5.30-2",
"3.5.5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44283.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "etcd",
"purl": "pkg:deb/debian/etcd?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"3.5.16-10",
"3.5.16-11",
"3.5.16-4",
"3.5.16-5",
"3.5.16-6",
"3.5.16-7",
"3.5.16-8",
"3.5.16-9",
"3.5.22-1",
"3.5.22-2",
"3.5.30-1~exp1",
"3.5.30-1~exp2",
"3.5.30-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44283.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.16-11"
}
]
}
],
"package": {
"name": "etcd",
"purl": "pkg:deb/debian/etcd?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.5.16-10",
"3.5.16-4",
"3.5.16-5",
"3.5.16-6",
"3.5.16-7",
"3.5.16-8",
"3.5.16-9"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44283.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57061 · Revision 1
- Added to Heist Feed
- Publisher date