| Name | CVE-2026-44283 |
| Description | 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1136829 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| etcd (PTS) | bullseye | 3.3.25+dfsg-6 | vulnerable |
| bookworm | 3.4.23-4 | vulnerable | |
| trixie | 3.5.16-4 | vulnerable | |
| forky, sid | 3.5.16-11 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| etcd | source | (unstable) | 3.5.16-11 | 1136829 |
[trixie] - etcd <no-dsa> (Minor issue)
[bookworm] - etcd <no-dsa> (Minor issue)
https://github.com/etcd-io/etcd/security/advisories/GHSA-x35m-3gp4-4fh5
https://github.com/etcd-io/etcd/pull/21677
https://github.com/etcd-io/etcd/pull/21680
Fixed by: https://github.com/etcd-io/etcd/commit/e8ce1ae41f18a938d0d8ad85dbc034c489e468db (v3.5.30)
Fixed by: https://github.com/etcd-io/etcd/commit/500c535adbb8a5a444bbff9fa34cc1c10addee71 (v3.5.30)