CVE-2026-44283 NONE

CVE-2026-44283: etcd: Read access via PrevKv in etcd transactions may bypass RBAC authorization checks

Vendor Etcd-Io
Product etcd
Weakness CWE-863 · Incorrect authorization
Published May 14, 2026
Last update May 16, 2026
View on NVD All CVEs

CVSS base score

0.0/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 14, 2026 CVE published
May 16, 2026 Record updated