CVE-2026-102409

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Source
https://cve.org/CVERecord?id=CVE-2026-102409
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102409.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-102409
Aliases
Downstream
CGA (10)
MINI (8)
Published
2026-10-06T19:31:40Z
Modified
2026-10-15T07:06:32Z
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 Recursion in Elasticsearch Leading to Denial of Service
Details

Uncontrolled Recursion (CWE-674) in Elasticsearch can allow an authenticated user with low privileges to terminate an Elasticsearch node, resulting in denial of service, via Excessive Allocation (CAPEC-130).

Database specific 
{
    "cna_assigner":  "elastic",
    "cwe_ids":  [
        "CWE-674"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102409.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "9.2.0"
                },
                {
                    "last_affected":  "9.2.8"
                },
                {
                    "introduced":  "9.3.0"
                },
                {
                    "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
25d88452371273dd27356c98598287b669a03eae
Fixed
c042abbb0eaaaa61b49beef21d517468861a4db2
Introduced
8d4246a64bc255212407b1b313fe402391299c88
Fixed
48acba663b09e70b115dd879329141506c377890
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "9.2.0"
        },
        {
            "fixed":  "9.4.8"
        },
        {
            "introduced":  "9.5.0"
        },
        {
            "fixed":  "9.5.5"
        }
    ],
    "source":  "CPE_RANGE"
}

Affected versions

v9.*
v9.5.0
v9.5.1
v9.5.2
v9.5.3
v9.5.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102409.json"
vanir_signatures 
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vanir_signatures_modified 
"2026-10-15T07:06:32Z"