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Vulnerability Details :

CVE-2026-26938

Summary
Assigner-elastic
Assigner Org ID-271b6943-45a9-4f3a-ab4e-976f3fa05b5a
Published At-26 Feb, 2026 | 17:56
Updated At-27 Feb, 2026 | 16:03
Rejected At-
Credits

Improper Neutralization of Special Elements Used in a Template Engine in Kibana Workflows Leading to Server-Side Request Forgery (SSRF)

Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336) exists in Workflows in Kibana which could allow an attacker to read arbitrary files from the Kibana server filesystem, and perform Server-Side Request Forgery (SSRF) via Code Injection (CAPEC-242). This requires an authenticated user who has the workflowsManagement:executeWorkflow privilege.

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 | 17:56
Updated At:27 Feb, 2026 | 16:03
Rejected At:
▼CVE Numbering Authority (CNA)
Improper Neutralization of Special Elements Used in a Template Engine in Kibana Workflows Leading to Server-Side Request Forgery (SSRF)

Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336) exists in Workflows in Kibana which could allow an attacker to read arbitrary files from the Kibana server filesystem, and perform Server-Side Request Forgery (SSRF) via Code Injection (CAPEC-242). This requires an authenticated user who has the workflowsManagement:executeWorkflow privilege.

Affected Products
Vendor
Elasticsearch BVElastic
Product
Kibana
Default Status
unaffected
Versions
Affected
  • From 9.3.0 through 9.3.0 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-1336CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine
Type: CWE
CWE ID: CWE-1336
Description: CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine
Metrics
VersionBase scoreBase severityVector
3.18.6HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Version: 3.1
Base score: 8.6
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-242CAPEC-242 Code Injection
CAPEC ID: CAPEC-242
Description: CAPEC-242 Code Injection
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://discuss.elastic.co/t/kibana-9-3-1-security-update-esa-2026-17/385253
N/A
Hyperlink: https://discuss.elastic.co/t/kibana-9-3-1-security-update-esa-2026-17/385253
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 | 19:32
Updated At:27 Feb, 2026 | 14:06

Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336) exists in Workflows in Kibana which could allow an attacker to read arbitrary files from the Kibana server filesystem, and perform Server-Side Request Forgery (SSRF) via Code Injection (CAPEC-242). This requires an authenticated user who has the workflowsManagement:executeWorkflow privilege.

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
Secondary3.18.6HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Type: Secondary
Version: 3.1
Base score: 8.6
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-1336Secondarysecurity@elastic.co
CWE ID: CWE-1336
Type: Secondary
Source: security@elastic.co
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://discuss.elastic.co/t/kibana-9-3-1-security-update-esa-2026-17/385253security@elastic.co
N/A
Hyperlink: https://discuss.elastic.co/t/kibana-9-3-1-security-update-esa-2026-17/385253
Source: security@elastic.co
Resource: N/A

Change History

0
Information is not available yet

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Action-Not Available
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
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Action-Not Available
Vendor-Elasticsearch BV
Product-elastic_cloud_enterpriseElastic Cloud Enterprise (ECE)
CWE ID-CWE-1336
Improper Neutralization of Special Elements Used in a Template Engine
Details not found