CVE-2026-94396

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Source
https://cve.org/CVERecord?id=CVE-2026-94396
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-94396.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-94396
Aliases
Downstream
CGA (12)
CLEANSTART (2)
MINI (8)
Published
2026-09-26T20:42:23Z
Modified
2026-10-28T11:21:42Z
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 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/2026/94xxx/CVE-2026-94396.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "introduced": "9.2.0"
                        },
                        {
                            "last_affected": "9.4.6"
                        },
                        {
                            "introduced": "9.5.0"
                        },
                        {
                            "last_affected": "9.5.3"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/elastic/elasticsearch

Affected ranges

Type
GIT
Repo
https://github.com/elastic/elasticsearch
Events
Introduced
25d88452371273dd27356c98598287b669a03eae
Fixed
9093bd876e86f531329aad3704ec9ab607c909c8
Introduced
8d4246a64bc255212407b1b313fe402391299c88
Fixed
9170df19cae1adb107b7b489b4d82dec66d7a337
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "9.2.0"
                },
                {
                    "fixed": "9.4.7"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "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-2026-94396.json"
vanir_signatures 
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        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/elastic/elasticsearch/commit/9170df19cae1adb107b7b489b4d82dec66d7a337",
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        },
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        "signature_version": "v1",
        "source": "https://github.com/elastic/elasticsearch/commit/9170df19cae1adb107b7b489b4d82dec66d7a337",
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        "source": "https://github.com/elastic/elasticsearch/commit/9170df19cae1adb107b7b489b4d82dec66d7a337",
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        "signature_version": "v1",
        "source": "https://github.com/elastic/elasticsearch/commit/9170df19cae1adb107b7b489b4d82dec66d7a337",
        "target": {
            "file": "server/src/test/java/org/elasticsearch/action/search/MultiSearchRequestTests.java",
            "function": "testFailOnExtraCharacters"
        }
    }
]
vanir_signatures_modified 
"2026-10-28T11:21:42Z"