CVE-2026-56151

Source
https://cve.org/CVERecord?id=CVE-2026-56151
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56151.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-56151
Downstream
Published
2026-07-01T16:29:25.165Z
Modified
2026-07-15T15:53:37.315818Z
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
Improper Input Validation in Kibana Leading to Denial of Service
Details

Improper Input Validation (CWE-20) in Kibana can lead to a denial of service via Input Data Manipulation (CAPEC-153). An authenticated user can submit a specially crafted Fleet policy input that is not correctly validated, which can render Fleet agent, server, and policy management functionality unavailable.

Database specific
{
    "cna_assigner": "elastic",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56151.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "9.0.0"
                },
                {
                    "last_affected": "9.3.5"
                },
                {
                    "introduced": "8.0.0"
                },
                {
                    "last_affected": "8.19.16"
                },
                {
                    "introduced": "9.4.0"
                },
                {
                    "last_affected": "9.4.2"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ],
    "cwe_ids": [
        "CWE-20"
    ]
}
References

Affected packages

Git / github.com/elastic/elasticsearch

Affected ranges

Type
GIT
Repo
https://github.com/elastic/elasticsearch
Events
Database specific
{
    "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.19.17"
        },
        {
            "introduced": "9.0.0"
        },
        {
            "fixed": "9.3.6"
        },
        {
            "introduced": "9.4.0"
        },
        {
            "fixed": "9.4.3"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

v9.*
v9.4.0
v9.4.1
v9.4.2

Database specific

vanir_signatures_modified
"2026-07-15T15:53:37Z"
vanir_signatures
[
    {
        "target": {
            "function": "sendResponse",
            "file": "x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/action/TransportInferTrainedModelDeploymentAction.java"
        },
        "id": "CVE-2026-56151-08cd97ae",
        "digest": {
            "function_hash": "29441788254395633515098764324401556637",
            "length": 129.0
        },
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/elastic/elasticsearch/commit/1f1ab65304a7633cd6511a1fa2b65c914064e724"
    },
    {
        "target": {
            "function": "testMultipleInferencesTriggeringDownloadAndDeploy",
            "file": "x-pack/plugin/inference/qa/inference-service-tests/src/javaRestTest/java/org/elasticsearch/xpack/inference/DefaultEndPointsIT.java"
        },
        "id": "CVE-2026-56151-12a7e5d0",
        "digest": {
            "function_hash": "40397406528957796250670637991145046939",
            "length": 1215.0
        },
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/elastic/elasticsearch/commit/1f1ab65304a7633cd6511a1fa2b65c914064e724"
    },
    {
        "target": {
            "file": "x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/action/TransportInferTrainedModelDeploymentAction.java"
        },
        "id": "CVE-2026-56151-9497d348",
        "digest": {
            "line_hashes": [
                "41841651195592930148736172086999723057",
                "293921697622875590993476152838503875226",
                "201880235236449890862874291613591026267",
                "6931030598426457207818976607922096200"
            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/elastic/elasticsearch/commit/1f1ab65304a7633cd6511a1fa2b65c914064e724"
    },
    {
        "target": {
            "function": "orderedListener",
            "file": "x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/action/TransportInferTrainedModelDeploymentAction.java"
        },
        "id": "CVE-2026-56151-c905e504",
        "digest": {
            "function_hash": "111700266056805079076925351035754336236",
            "length": 617.0
        },
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/elastic/elasticsearch/commit/1f1ab65304a7633cd6511a1fa2b65c914064e724"
    },
    {
        "target": {
            "function": "isTransientMlInferenceIndexError",
            "file": "x-pack/plugin/inference/qa/inference-service-tests/src/javaRestTest/java/org/elasticsearch/xpack/inference/DefaultEndPointsIT.java"
        },
        "id": "CVE-2026-56151-d0d4b7fe",
        "digest": {
            "function_hash": "241575066176641808023110688533211015903",
            "length": 304.0
        },
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/elastic/elasticsearch/commit/1f1ab65304a7633cd6511a1fa2b65c914064e724"
    },
    {
        "target": {
            "file": "x-pack/plugin/inference/qa/inference-service-tests/src/javaRestTest/java/org/elasticsearch/xpack/inference/DefaultEndPointsIT.java"
        },
        "id": "CVE-2026-56151-df7c16bd",
        "digest": {
            "line_hashes": [
                "330219953685486924298274755298237131959",
                "166130015368858971406942022203579193789",
                "337783925376695354837115980903317907964",
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                "153686128340309626383324163697449261191",
                "102390998186244914873872092038171582988",
                "245399238348785213885479398615378861075",
                "117288393288463401964532166318938367911",
                "214417864609834662678204278855561442218",
                "245186405744128472060288516088896897897",
                "193955595797424284137841368521614573857",
                "9647211314265521622759035767770903218",
                "243344772398150740875004430653142675275",
                "83851240527543313267635888024470475211",
                "78688963017947431333142322875487224392",
                "168491302531714645767248205696815253686",
                "125236309399044997400000281087699158995",
                "132990391482460805336000105640402572742",
                "291348162790534244772418497244911726327",
                "132486071438518517437423506955922898453",
                "80619291182477827634854396748823757331",
                "33159264791753487181784553336347152862",
                "153991559771436669268470682107481448841",
                "191167260007516084674438259537540611494",
                "239146445380549411566847675773548075115",
                "14521978852238339045381558265113290694",
                "178376481549476433071831563883359506428",
                "116339813896664306671512025576166697825",
                "229146779753699802054265479874943240634",
                "46396995878082220991355606291219984101",
                "167806518901712329362075522321398192931",
                "28524417813964392607409780957224371900",
                "10001939122652558884071231692076084665",
                "311660342762049221221006871122406265296",
                "105605360463024014740596183169296519056",
                "248006774222241606148249795085412743613",
                "273828121698775569320936307150012678626",
                "146526953548968729068794463901905005369",
                "309740307253372276004399670213634983671",
                "232140615438285489033187652382509802494"
            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/elastic/elasticsearch/commit/1f1ab65304a7633cd6511a1fa2b65c914064e724"
    }
]
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56151.json"

Git / github.com/elastic/kibana

Affected ranges

Type
GIT
Repo
https://github.com/elastic/kibana
Events
Database specific
{
    "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.19.17"
        },
        {
            "introduced": "9.0.0"
        },
        {
            "fixed": "9.3.6"
        },
        {
            "introduced": "9.4.0"
        },
        {
            "fixed": "9.4.3"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

v9.*
v9.4.0
v9.4.1
v9.4.2

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56151.json"