CVE-2026-94408

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Source
https://cve.org/CVERecord?id=CVE-2026-94408
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-94408.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-94408
Aliases
Downstream
AZL (1)
CGA (12)
CLEANSTART (1)
MINI (21)
Published
2026-09-26T20:42:27Z
Modified
2026-10-08T07:15:44Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/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-2026-94408.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "8.0.0"
                },
                {
                    "last_affected": "8.19.21"
                },
                {
                    "introduced": "9.0.0"
                },
                {
                    "last_affected": "9.4.6"
                },
                {
                    "introduced": "9.5.0"
                },
                {
                    "last_affected": "9.5.2"
                }
            ],
            "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
367ec317ec5f668dd864d41be06052a567102fec
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": "9.5.3"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-94408.json"
vanir_signatures 
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            "threshold": 0.9
        },
        "id": "CVE-2026-94408-8a40a35f",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/elastic/elasticsearch/commit/3b2a41103de35e0af4064d647974032fcc1bcde9",
        "target": {
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        }
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            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-94408-a012b938",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/elastic/elasticsearch/commit/3b2a41103de35e0af4064d647974032fcc1bcde9",
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    },
    {
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        "signature_version": "v1",
        "source": "https://github.com/elastic/elasticsearch/commit/3b2a41103de35e0af4064d647974032fcc1bcde9",
        "target": {
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            "function": "context"
        }
    }
]
vanir_signatures_modified 
"2026-10-08T07:15:44Z"