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    CVE-2026-72645

    Memory Allocation with Excessive Size Value (CWE-789) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding only read privileges on a single index can submit one small, specially crafted search request that causes an excessively large memory allocation, exhausting the JVM heap and terminating the affected node.

    Published:Aug 13, 2026
    Last Modified:Sep 1, 2026
    EPS:Aug 13, 2026
    EPSS Score:0.0029
    CVSS Score:6.5

    Affected Products

    Vendor
    Elastic
    Product
    Elasticsearch

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-56143 (CVSS 4.9) — Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of servic…
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    CVE-2026-72647 (CVSS 6.5) — Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Neste…
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    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