BIT-elasticsearch-2026-72678

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/elasticsearch/BIT-elasticsearch-2026-72678.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-elasticsearch-2026-72678
Aliases
  • CVE-2026-72678
Published
2026-08-19T08:39:44.859Z
Modified
2026-08-19T09:45:09.422252394Z
Summary
Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service
Details

Elasticsearch does not validate a size value taken from a user-supplied input before that value is used to reserve memory for an internal data structure. An authenticated user holding only read privileges can submit a single small crafted request to a product API endpoint that causes the node to attempt an excessively large allocation. The resulting memory exhaustion raises a fatal error that terminates the Elasticsearch node process, causing a denial of service for the affected node and degrading cluster health. The defect is not volumetric, so a single request is sufficient regardless of the heap size configured on the target node.

Database specific
{
    "cpes": [
        "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:maven:*:*"
    ],
    "severity": "Medium"
}
References

Affected packages

Bitnami / elasticsearch

Package

Name
elasticsearch
Purl
pkg:bitnami/elasticsearch

Severity

  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
8.19.0
Fixed
8.19.20
Introduced
9.4.0
Fixed
9.4.5
Introduced
9.5.0
Fixed
9.5.1

Database specific

source
"https://github.com/bitnami/vulndb/tree/main/data/elasticsearch/BIT-elasticsearch-2026-72678.json"