etcd: Read access via PrevKv in etcd transactions may bypass RBAC authorization checks
CVE-2026-44283 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-44283, released May 14, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| etcd · Debian 14 | 3.5.16-11 | DEBIAN-CVE-2026-44283 | May 14, 2026 |
| govulncheck-vulndb · opensuse-leap 16.0 | 0.0.20260727T201416-160000.1.1 | OPENSUSE-SU-2026:21551-1 | Aug 10, 2026 |
| govulncheck-vulndb · sles 16.0 | 0.0.20260727T201416-160000.1.1 | SUSE-SU-2026:23227-1 | Aug 10, 2026 |
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