CVE-2026-26937

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Source
https://cve.org/CVERecord?id=CVE-2026-26937
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26937.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-26937
Aliases
Downstream
MINI (5)
Published
2026-02-26T17:51:35Z
Modified
2026-08-12T15:32:03Z
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 Resource Consumption in Kibana Leading to Denial of Service
Details

Uncontrolled Resource Consumption (CWE-400) in the Timelion component in Kibana can lead Denial of Service via Input Data Manipulation (CAPEC-153)

Database specific 
{
    "cna_assigner":  "elastic",
    "cwe_ids":  [
        "CWE-400"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26937.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "9.0.0"
                },
                {
                    "last_affected":  "9.2.4"
                },
                {
                    "introduced":  "8.0.0"
                },
                {
                    "last_affected":  "8.19.10"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/elastic/elasticsearch

Affected ranges

Type
GIT
Repo
https://github.com/elastic/elasticsearch
Events
Introduced
1b6a7ece17463df5ff54a3e1302d825889aa1161
Fixed
c5253e1bcb0268a5dafed9dee18e16fd3144d7d6
Introduced
112859b85d50de2a7e63f73c8fc70b99eea24291
Fixed
c26a2652b4f4e323c18bdb4f56f0038c8aece886
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "8.0.0"
        },
        {
            "fixed":  "8.19.11"
        },
        {
            "introduced":  "9.0.0"
        },
        {
            "fixed":  "9.2.5"
        }
    ],
    "source":  "CPE_RANGE"
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26937.json"
vanir_signatures 
[
    {
        "deprecated":  false,
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            "threshold":  0.9
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        "id":  "CVE-2026-26937-138534e9",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/elastic/elasticsearch/commit/c5253e1bcb0268a5dafed9dee18e16fd3144d7d6",
        "target":  {
            "file":  "x-pack/qa/smoke-test-plugins/src/yamlRestTest/java/org/elasticsearch/smoketest/XSmokeTestPluginsClientYamlTestSuiteIT.java"
        }
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            "length":  4740
        },
        "id":  "CVE-2026-26937-34ba32cc",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/elastic/elasticsearch/commit/c5253e1bcb0268a5dafed9dee18e16fd3144d7d6",
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        "source":  "https://github.com/elastic/elasticsearch/commit/c26a2652b4f4e323c18bdb4f56f0038c8aece886",
        "target":  {
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            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-26937-8bac0d2b",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/elastic/elasticsearch/commit/c5253e1bcb0268a5dafed9dee18e16fd3144d7d6",
        "target":  {
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        }
    },
    {
        "deprecated":  false,
        "digest":  {
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            "length":  369
        },
        "id":  "CVE-2026-26937-d758fb5b",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/elastic/elasticsearch/commit/c26a2652b4f4e323c18bdb4f56f0038c8aece886",
        "target":  {
            "file":  "qa/packaging/src/test/java/org/elasticsearch/packaging/test/DebPreservationTests.java",
            "function":  "test40RestartOnUpgrade"
        }
    }
]
vanir_signatures_modified 
"2026-08-12T15:32:03Z"

Git / github.com/elastic/kibana

Affected ranges

Type
GIT
Repo
https://github.com/elastic/kibana
Events
Introduced
57ca5e139a33dd2eed927ce98d8231a1f217cd15
Fixed
c14722b56e3d34d5203bd311e91f9ec49227b044
Introduced
504d6bfa94cca17fabb76e06152c30c4f0c3efdd
Fixed
f99524135b3b29ff4011629c9e8511086b1a597a
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "8.0.0"
        },
        {
            "fixed":  "8.19.11"
        },
        {
            "introduced":  "9.0.0"
        },
        {
            "fixed":  "9.2.5"
        }
    ],
    "source":  "CPE_RANGE"
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26937.json"