CVE-2026-26938

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

CVSS 8.6 HIGHEPSS 0.3%CWE-1336

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.6EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

26 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Elastic · Kibana

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References

https://discuss.elastic.co/t/kibana-9-3-1-security-update-esa-2026-17/385253