CVE catalog
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 reque
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.22% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | etcd | sid | 3.5.30-2 | fixed |
| Debian | etcd | forky | 3.5.30-2 | fixed |
| Debian | etcd | trixie | 3.5.16-4 | vulnerable |
| Debian | etcd | bookworm | 3.4.23-4 | vulnerable |
| Cpe | etcd | Not reported | Not reported | vulnerable |
| Cpe | etcd | Not reported | 3.4.44 | fixed |
| Cpe | etcd | Not reported | 3.5.30 | fixed |
| Cpe | etcd | Not reported | 3.6.11 | fixed |
| Opensuse | flannel | tumbleweed | 0.28.5-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | etcd | source | sid | 3.5.16-11 | not yet assigned | Not reported | [1136829] |
| Debian | etcd | source | forky | 3.5.16-11 | not yet assigned | Not reported | [1136829] |
| Debian | etcd | source | trixie | (unfixed) | not yet assigned | Not reported | [1136829] |
| Debian | etcd | source | bookworm | (unfixed) | not yet assigned | Not reported | [1136829] |
| Cpe | etcd | cpe | Not reported | 3.4.44 | Not reported | Not reported | Not reported |
| Cpe | etcd | cpe | Not reported | 3.5.30 | Not reported | Not reported | Not reported |
| Cpe | etcd | cpe | Not reported | 3.6.11 | Not reported | Not reported | Not reported |
| Opensuse | flannel | rpm | tumbleweed | 0.28.5-1.1 | Not reported | OPENSUSE-SU-2026:10980-1 | Not reported |
Notes
[trixie] etcd: Minor issue [bookworm] etcd: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [etcd-client]Affected
Source package: [etcd]
Details (2)
3.4.23-4+b4· amd64 · bookwormAffected
nvd · etcd · debian · bookworm; nvd · etcd · debian · 12
3.4.23-4+b4· arm64 · bookwormAffected
nvd · etcd · debian · bookworm; nvd · etcd · debian · 12
- [etcd-server]Affected
Source package: [etcd]
Details (2)
3.4.23-4+b4· amd64 · bookwormAffected
nvd · etcd · debian · bookworm; nvd · etcd · debian · 12
3.4.23-4+b4· arm64 · bookwormAffected
nvd · etcd · debian · bookworm; nvd · etcd · debian · 12
- [golang-etcd-server-dev]Affected
Source package: [etcd]
Details (2)
3.4.23-4· all · bookwormAffected
nvd · etcd · debian · bookworm; nvd · etcd · debian · 12
3.4.23-4· all · bookwormAffected
nvd · etcd · debian · bookworm; nvd · etcd · debian · 12
[Debian 13 (Trixie)]
- [etcd-client]Affected
Source package: [etcd]
Details (2)
3.5.16-4· amd64 · trixieAffected
nvd · etcd · debian · 13
3.5.16-4· arm64 · trixieAffected
nvd · etcd · debian · 13
- [etcd-server]Affected
Source package: [etcd]
Details (2)
3.5.16-4· amd64 · trixieAffected
nvd · etcd · debian · 13
3.5.16-4· arm64 · trixieAffected
nvd · etcd · debian · 13
- [golang-etcd-server-dev]Affected
Source package: [etcd]
Details (2)
3.5.16-4· all · trixieAffected
nvd · etcd · debian · 13
3.5.16-4· all · trixieAffected
nvd · etcd · debian · 13
[openSUSE Tumbleweed]
- [flannel-k8s-yaml]Unknown
Source package: [flannel]
Details (1)
0.28.7-1.2· noarch · tumbleweedUnknown · Fixed:
0.28.5-1.1Version impact unknown
nvd · flannel · opensuse · tumbleweed
- [flannel]Fixed
Source package: [flannel]
Details (1)
0.28.7-1.2· x86_64 · tumbleweedFixed · Fixed:
0.28.5-1.1nvd · flannel · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10980-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-44283]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-44283]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10980-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-44283]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44283.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1400.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]