CVE-2026-82300

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Source
https://cve.org/CVERecord?id=CVE-2026-82300
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82300.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-82300
Aliases
Downstream
AZL (1)
CGA (8)
MINI (20)
Published
2026-09-26T20:42:16Z
Modified
2026-10-01T10:11:19Z
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
Summary
Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service
Details

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130).

Database specific 
{
    "cna_assigner":  "elastic",
    "cwe_ids":  [
        "CWE-400"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82300.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "8.0.0"
                },
                {
                    "last_affected":  "8.19.21"
                },
                {
                    "introduced":  "9.0.0"
                },
                {
                    "last_affected":  "9.4.7"
                },
                {
                    "introduced":  "9.5.0"
                },
                {
                    "last_affected":  "9.5.3"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/elastic/elasticsearch

Affected ranges

Type
GIT
Repo
https://github.com/elastic/elasticsearch
Events
Introduced
1b6a7ece17463df5ff54a3e1302d825889aa1161
Fixed
3b2a41103de35e0af4064d647974032fcc1bcde9
Introduced
112859b85d50de2a7e63f73c8fc70b99eea24291
Fixed
9093bd876e86f531329aad3704ec9ab607c909c8
Introduced
8d4246a64bc255212407b1b313fe402391299c88
Fixed
9170df19cae1adb107b7b489b4d82dec66d7a337
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "8.0.0"
        },
        {
            "fixed":  "8.19.22"
        },
        {
            "introduced":  "9.0.0"
        },
        {
            "fixed":  "9.4.7"
        },
        {
            "introduced":  "9.5.0"
        },
        {
            "fixed":  "9.5.4"
        }
    ],
    "source":  "CPE_RANGE"
}

Affected versions

v9.*
v9.5.0
v9.5.1
v9.5.2
v9.5.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82300.json"
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vanir_signatures_modified 
"2026-10-01T08:03:07Z"