CVE-2026-103005

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Source
https://cve.org/CVERecord?id=CVE-2026-103005
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-103005.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-103005
Aliases
Downstream
CGA (10)
CLEANSTART (1)
MINI (21)
Published
2026-10-06T19:31:47Z
Modified
2026-10-13T08:25:58Z
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
Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service
Details

Memory Allocation with Excessive Size Value (CWE-789) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user with connector management privileges could cause the cluster to allocate an uncontrolled amount of memory when connector resources with an excessively large description field are created and subsequently accessed, exhausting available heap memory and crashing the affected node.

Database specific 
{
    "cna_assigner": "elastic",
    "cwe_ids": [
        "CWE-789"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103005.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "8.12.0"
                },
                {
                    "last_affected": "8.19.22"
                },
                {
                    "introduced": "9.0.0"
                },
                {
                    "last_affected": "9.3.8"
                },
                {
                    "introduced": "9.4.0"
                },
                {
                    "last_affected": "9.4.7"
                },
                {
                    "introduced": "9.5.0"
                },
                {
                    "last_affected": "9.5.4"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/elastic/elasticsearch

Affected ranges

Type
GIT
Repo
https://github.com/elastic/elasticsearch
Events
Introduced
112859b85d50de2a7e63f73c8fc70b99eea24291
Last Affected
171dd53e53c29b91f45d2d87857a3f74db48cca5
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "9.0.0"
        },
        {
            "last_affected": "9.3.8"
        }
    ],
    "source": "CPE_RANGE"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-103005.json"