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    CVE-2026-44283

    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.

    Published:May 14, 2026
    Last Modified:May 16, 2026
    EPS:May 14, 2026
    EPSS Score:0.0003
    CVSS Score:0

    Affected Products

    Vendor
    Etcd
    Product
    Etcd

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-863 Incorrect Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-73500 (CVSS 8.7) — etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.5.33, 3.6.14, …
    CVE-2026-73499 (CVSS 7.1) — etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.5.33, 3.6.14, …
    CVE-2026-59818 (CVSS 6.5) — etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when e…
    CVE-2026-33413 (CVSS 8.8) — etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, …
    CVE-2026-33343 (CVSS 0) — etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, …
    CVE-2022-34038 (CVSS 7.5) — Etcd v3.5.4 allows remote attackers to cause a denial of service via function PageWriter.write in pagewriter.g…
    CVE-2023-32082 (CVSS 3.1) — etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.26 and 3.5.9…
    CVE-2021-28235 (CVSS 9.8) — Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the …
    CVE-2020-15112 (CVSS 6.5) — In etcd before versions 3.3.23 and 3.4.10, it is possible to have an entry index greater then the number of en…
    CVE-2020-15113 (CVSS 5.7) — In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the di…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High