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Vulnerability Details :

CVE-2026-26935

Summary
Assigner-elastic
Assigner Org ID-271b6943-45a9-4f3a-ab4e-976f3fa05b5a
Published At-26 Feb, 2026 | 17:05
Updated At-26 Feb, 2026 | 18:28
Rejected At-
Credits

Improper Input Validation in Kibana Leading to Denial of Service

Improper Input Validation (CWE-20) in the internal Content Connectors search endpoint in Kibana can lead Denial of Service via Input Data Manipulation (CAPEC-153)

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:elastic
Assigner Org ID:271b6943-45a9-4f3a-ab4e-976f3fa05b5a
Published At:26 Feb, 2026 | 17:05
Updated At:26 Feb, 2026 | 18:28
Rejected At:
▼CVE Numbering Authority (CNA)
Improper Input Validation in Kibana Leading to Denial of Service

Improper Input Validation (CWE-20) in the internal Content Connectors search endpoint in Kibana can lead Denial of Service via Input Data Manipulation (CAPEC-153)

Affected Products
Vendor
Elasticsearch BVElastic
Product
Kibana
Default Status
unaffected
Versions
Affected
  • From 9.3.0 through 9.3.0 (semver)
  • From 8.4.0 through 8.19.11 (semver)
  • From 9.0.0 through 9.2.5 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-20CWE-20 Improper Input Validation
Type: CWE
CWE ID: CWE-20
Description: CWE-20 Improper Input Validation
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-153CAPEC-153 Input Data Manipulation
CAPEC ID: CAPEC-153
Description: CAPEC-153 Input Data Manipulation
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://discuss.elastic.co/t/kibana-8-19-12-9-2-6-9-3-1-security-update-esa-2026-13/385249
N/A
Hyperlink: https://discuss.elastic.co/t/kibana-8-19-12-9-2-6-9-3-1-security-update-esa-2026-13/385249
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@elastic.co
Published At:26 Feb, 2026 | 18:23
Updated At:27 Feb, 2026 | 14:06

Improper Input Validation (CWE-20) in the internal Content Connectors search endpoint in Kibana can lead Denial of Service via Input Data Manipulation (CAPEC-153)

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-20Secondarysecurity@elastic.co
CWE ID: CWE-20
Type: Secondary
Source: security@elastic.co
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://discuss.elastic.co/t/kibana-8-19-12-9-2-6-9-3-1-security-update-esa-2026-13/385249security@elastic.co
N/A
Hyperlink: https://discuss.elastic.co/t/kibana-8-19-12-9-2-6-9-3-1-security-update-esa-2026-13/385249
Source: security@elastic.co
Resource: N/A

Change History

0
Information is not available yet

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