Vulnerability-Lookup

CVE-2026-56151 (GCVE-0-2026-56151)

Vulnerability from cvelistv5 – Published: 2026-07-01 16:29 – Updated: 2026-07-01 17:25

Title

Improper Input Validation in Kibana Leading to Denial of Service

Summary

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.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-01 17:19 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

elastic mitre root

References

1 reference

URL	Tags
https://discuss.elastic.co/t/kibana-8-19-17-9-3-6…

Impacted products

1 product

Vendor	Product	Version	CPE status
Elastic	Kibana	Affected: 9.0.0 , ≤ 9.3.5 (semver) Affected: 8.0.0 , ≤ 8.19.16 (semver) Affected: 9.4.0 , ≤ 9.4.2 (semver)	guessed

Show details on NVD website

JSON

To clipboard

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CERTFR-2026-AVI-0826

Vulnerability from certfr_avis - Published: 2026-07-02 - Updated: 2026-07-02

De multiples vulnérabilités ont été découvertes dans les produits Elastic. Certaines d'entre elles permettent à un attaquant de provoquer un déni de service à distance, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Elastic	Kibana	Kibana versions 8.17.x antérieures à 8.17.2
Elastic	Kibana	Kibana versions 8.19.x antérieures à 8.19.17
Elastic	Fleet Server	Fleet Server versions 8.x antérieures à 8.19.15
Elastic	Elastic Defend	Elastic Defend versions 9.3.x antérieures à 9.3.2
Elastic	Kibana	Kibana versions 8.18.x antérieures à 8.18.9
Elastic	Elasticsearch	Elasticsearch versions 9.4.x antérieures à 9.4.3
Elastic	Kibana	Kibana versions 8.x antérieures à 8.16.3
Elastic	Elastic Defend	Elastic Defend versions 9.x antérieures à 9.2.7
Elastic	Elasticsearch	Elasticsearch versions 8.x antérieures à 8.19.17
Elastic	Elasticsearch	Elasticsearch versions 9.x antérieures à 9.3.5
Elastic	Elasticsearch	Elasticsearch versions 7.x antérieures à 7.17.24
Elastic	Elastic Defend	Elastic Defend versions postérieures à 8.6.x antérieures à 8.19.13
Elastic	Kibana	Kibana versions 7.x antérieures à 7.17.15
Elastic	Kibana	Kibana versions 9.x antérieures à 9.0.8, 9.1.6, 9.3.6 ou 9.4.3
Elastic	Fleet Server	Fleet Server versions 9.x antérieures à 9.3.4

References

Title

Publication Time

Tags

Bulletin de sécurité Elastic 387445	2026-07-01	vendor-advisory
Bulletin de sécurité Elastic 387446	2026-07-01	vendor-advisory
Bulletin de sécurité Elastic 387443	2026-07-01	vendor-advisory
Bulletin de sécurité Elastic 387438	2026-07-01	vendor-advisory
Bulletin de sécurité Elastic 387440	2026-07-01	vendor-advisory
Bulletin de sécurité Elastic 387444	2026-07-01	vendor-advisory
Bulletin de sécurité Elastic 387449	2026-07-01	vendor-advisory
Bulletin de sécurité Elastic 387439	2026-07-01	vendor-advisory
Bulletin de sécurité Elastic 387442	2026-07-01	vendor-advisory
Bulletin de sécurité Elastic 387447	2026-07-01	vendor-advisory
Bulletin de sécurité Elastic 387441	2026-07-01	vendor-advisory

Show details on source website

JSON

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  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Kibana versions 8.17.x ant\u00e9rieures \u00e0 8.17.2",
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      "product": {
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        "vendor": {
          "name": "Elastic",
          "scada": false
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    {
      "description": "Kibana versions 8.18.x ant\u00e9rieures \u00e0 8.18.9",
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        "name": "Kibana",
        "vendor": {
          "name": "Elastic",
          "scada": false
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    {
      "description": "Elasticsearch versions 9.4.x ant\u00e9rieures \u00e0 9.4.3",
      "product": {
        "name": "Elasticsearch",
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          "scada": false
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      "description": "Kibana versions 8.x ant\u00e9rieures \u00e0 8.16.3",
      "product": {
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          "name": "Elastic",
          "scada": false
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      "product": {
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        "name": "Elasticsearch",
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    },
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      "product": {
        "name": "Elastic Defend",
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      "product": {
        "name": "Kibana",
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    {
      "name": "CVE-2026-32283",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-32283"
    },
    {
      "name": "CVE-2026-56149",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-56149"
    },
    {
      "name": "CVE-2026-56152",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-56152"
    },
    {
      "name": "CVE-2026-56148",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-56148"
    },
    {
      "name": "CVE-2026-49089",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-49089"
    },
    {
      "name": "CVE-2026-49088",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-49088"
    },
    {
      "name": "CVE-2026-49087",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-49087"
    }
  ],
  "initial_release_date": "2026-07-02T00:00:00",
  "last_revision_date": "2026-07-02T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0826",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-07-02T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    },
    {
      "description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
    },
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Elastic. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Elastic",
  "vendor_advisories": [
    {
      "published_at": "2026-07-01",
      "title": "Bulletin de s\u00e9curit\u00e9 Elastic 387445",
      "url": "https://discuss.elastic.co/t/kibana-8-18-9-8-19-6-9-0-8-9-1-6-security-update-esa-2026-50/387445"
    },
    {
      "published_at": "2026-07-01",
      "title": "Bulletin de s\u00e9curit\u00e9 Elastic 387446",
      "url": "https://discuss.elastic.co/t/kibana-8-16-3-8-17-2-security-update-esa-2026-51/387446"
    },
    {
      "published_at": "2026-07-01",
      "title": "Bulletin de s\u00e9curit\u00e9 Elastic 387443",
      "url": "https://discuss.elastic.co/t/elastic-defend-8-19-13-9-2-7-9-3-2-security-update-esa-2026-46/387443"
    },
    {
      "published_at": "2026-07-01",
      "title": "Bulletin de s\u00e9curit\u00e9 Elastic 387438",
      "url": "https://discuss.elastic.co/t/fleet-server-8-19-15-9-3-4-9-4-0-security-update-esa-2026-41/387438"
    },
    {
      "published_at": "2026-07-01",
      "title": "Bulletin de s\u00e9curit\u00e9 Elastic 387440",
      "url": "https://discuss.elastic.co/t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-43/387440"
    },
    {
      "published_at": "2026-07-01",
      "title": "Bulletin de s\u00e9curit\u00e9 Elastic 387444",
      "url": "https://discuss.elastic.co/t/kibana-8-19-15-9-3-4-security-update-esa-2026-49/387444"
    },
    {
      "published_at": "2026-07-01",
      "title": "Bulletin de s\u00e9curit\u00e9 Elastic 387449",
      "url": "https://discuss.elastic.co/t/kibana-7-17-15-8-11-1-security-update-esa-2026-53/387449"
    },
    {
      "published_at": "2026-07-01",
      "title": "Bulletin de s\u00e9curit\u00e9 Elastic 387439",
      "url": "https://discuss.elastic.co/t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-42/387439"
    },
    {
      "published_at": "2026-07-01",
      "title": "Bulletin de s\u00e9curit\u00e9 Elastic 387442",
      "url": "https://discuss.elastic.co/t/kibana-8-19-17-9-3-6-9-4-3-security-update-esa-2026-45/387442"
    },
    {
      "published_at": "2026-07-01",
      "title": "Bulletin de s\u00e9curit\u00e9 Elastic 387447",
      "url": "https://discuss.elastic.co/t/elasticsearch-7-17-24-8-15-0-security-update-esa-2026-52/387447"
    },
    {
      "published_at": "2026-07-01",
      "title": "Bulletin de s\u00e9curit\u00e9 Elastic 387441",
      "url": "https://discuss.elastic.co/t/fleet-server-8-19-11-9-2-5-9-3-0-security-update-esa-2026-44/387441"
    }
  ]
}

FKIE_CVE-2026-56151

Vulnerability from fkie_nvd - Published: 2026-07-01 17:16 - Updated: 2026-07-02 16:09

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	security@elastic.co	https://discuss.elastic.co/t/kibana-8-19-17-9-3-6-9-4-3-security-update-esa-2026-45	Vendor Advisory

Impacted products

Vendor	Product	Version
elastic	kibana	*
elastic	kibana	*
elastic	kibana	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Kibana",
          "vendor": "Elastic",
          "versions": [
            {
              "lessThanOrEqual": "9.3.5",
              "status": "affected",
              "version": "9.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.19.16",
              "status": "affected",
              "version": "8.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "9.4.2",
              "status": "affected",
              "version": "9.4.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@elastic.co"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F6988FF1-B650-4AE7-9C9B-C3533634FEC4",
              "versionEndExcluding": "8.19.17",
              "versionStartIncluding": "8.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "ECDB67E0-0BAC-4158-A3A9-D38EB1CEAC8A",
              "versionEndExcluding": "9.3.6",
              "versionStartIncluding": "9.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A54D142F-22A7-4324-933D-02DCDBF32A4E",
              "versionEndExcluding": "9.4.3",
              "versionStartIncluding": "9.4.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "id": "CVE-2026-56151",
  "lastModified": "2026-07-02T16:09:39.207",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security@elastic.co",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-56151",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-01T17:19:03.394968Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-01T17:16:37.167",
  "references": [
    {
      "source": "security@elastic.co",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://discuss.elastic.co/t/kibana-8-19-17-9-3-6-9-4-3-security-update-esa-2026-45"
    }
  ],
  "sourceIdentifier": "security@elastic.co",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "security@elastic.co",
      "type": "Secondary"
    }
  ]
}

GHSA-RVXP-JQFR-H65P

Vulnerability from github – Published: 2026-07-01 18:31 – Updated: 2026-07-01 18:31

Details

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-56151"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-01T17:16:37Z",
    "severity": "MODERATE"
  },
  "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.",
  "id": "GHSA-rvxp-jqfr-h65p",
  "modified": "2026-07-01T18:31:55Z",
  "published": "2026-07-01T18:31:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56151"
    },
    {
      "type": "WEB",
      "url": "https://discuss.elastic.co/t/kibana-8-19-17-9-3-6-9-4-3-security-update-esa-2026-45"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-56151 (GCVE-0-2026-56151)

CERTFR-2026-AVI-0826

Solutions

FKIE_CVE-2026-56151

GHSA-RVXP-JQFR-H65P

Tags

Sightings

Nomenclature

Related by attack behaviour