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Go/go.etcd.io/etcd/v3 CVE-2026-33343: medium 6.5, EPSS 0.22%

Nested etcd transactions bypass RBAC authorization checks in go.etcd.io/etcd

Action: Upgrade go.etcd.io/etcd/v3 to 3.4.42 or later.

go get go.etcd.io/etcd/v3@v3.4.42
go get go.etcd.io/etcd/v3@v3.5.28
go get go.etcd.io/etcd/v3@v3.6.9

Affected

introducedfixedlast affected
03.4.42-
3.5.0-alpha.03.5.28-
3.6.0-alpha.03.6.9-

Fixed versions

3.4.423.5.283.6.9

Sources

CVE-2026-33343 · published · modified · JSON