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CVE PROGRAM SOURCE RECORD0.0 None

CVE-2026-44283

etcd: Read access via PrevKv in etcd transactions may bypass RBAC authorization checks

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

etcd-io etcd

  • < 3.4.44affected
  • >= 3.5.0, <= 3.5.29affected
  • >= 3.6.0, <= 3.6.10affected

References