CVE-2026-42401

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Source
https://cve.org/CVERecord?id=CVE-2026-42401
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-42401.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-42401
Aliases
Downstream
Published
2026-05-28T19:40:21.015Z
Modified
2026-06-26T03:54:18.291305542Z
Severity
  • 4.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N CVSS Calculator
Summary
Improper Neutralization of Input During Web Page Generation in Kibana Leading to Stored HTML Injection
Details

Improper Neutralization of Input During Web Page Generation (CWE-79) in Kibana can lead to stored HTML injection. A user with write access to an Elasticsearch index could persist crafted markup which, when subsequently rendered through an affected Kibana view by another user, was not sufficiently sanitized. Successful exploitation could result in unauthorized UI manipulation and outbound network requests issued from the viewing user's browser session.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42401.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "9.0.0"
                },
                {
                    "last_affected": "9.3.4"
                },
                {
                    "introduced": "8.0.0"
                },
                {
                    "last_affected": "8.19.15"
                }
            ]
        }
    ],
    "cwe_ids": [
        "CWE-79"
    ],
    "cna_assigner": "elastic"
}
References

Affected packages

Git / github.com/elastic/elasticsearch

Affected ranges

Type
GIT
Repo
https://github.com/elastic/elasticsearch
Events
Introduced
1b6a7ece17463df5ff54a3e1302d825889aa1161
Fixed
0ecfe314ed6ddebb736091bf37b3b6758209b73b
Introduced
112859b85d50de2a7e63f73c8fc70b99eea24291
Fixed
7dcc32bebba091844c0207f9dae8fda6c7d08542
Database specific 
{
    "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.19.16"
        },
        {
            "introduced": "9.0.0"
        },
        {
            "fixed": "9.3.5"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-42401.json"

Git / github.com/elastic/kibana

Affected ranges

Type
GIT
Repo
https://github.com/elastic/kibana
Events
Introduced
57ca5e139a33dd2eed927ce98d8231a1f217cd15
Fixed
209c12d77d1bf1bc561abff2b91aa95f354734a3
Introduced
504d6bfa94cca17fabb76e06152c30c4f0c3efdd
Fixed
db396449a69d0613b0b4dc8b8e9789aa35504e0f
Database specific 
{
    "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.19.16"
        },
        {
            "introduced": "9.0.0"
        },
        {
            "fixed": "9.3.5"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-42401.json"