CVE-2026-44283

CVE-2026-44283 affects etcd, a distributed key-value store. The issue: in nested transaction operations, read access via PrevKv or lease attachment in Put requests can bypass RBAC authorization checks. This could allow an authenticated user with limited read or lease permissions to access data th...

etcd RBAC bypass allows unauthorized data access via PrevKv/lease attachment in nested transaction Put requests

Impact What kind of vulnerability is it? Who is impacted? 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 b...