Authorization Bypass Through User-Controlled Key Affecting etcd package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.23% (13th percentile)

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  • Snyk IDSNYK-RHEL8-ETCD-17442208
  • published24 Jun 2026
  • disclosed14 May 2026

Introduced: 14 May 2026

CVE-2026-44283  (opens in a new tab)
CWE-639  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 etcd.

NVD Description

Note: Versions mentioned in the description apply only to the upstream etcd package and not the etcd package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1