CVE-2026-26938 Server-side request forgery in Kibana
Authenticated users with workflow execution privileges can exploit template injection to read server files and perform SSRF.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-26938?
CVE-2026-26938 is a high-severity server-side request forgery vulnerability in Elastic Kibana, published on 26 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-1336
Which versions are affected by CVE-2026-26938?
2 open source packages ship an affected version, including kibana and elk. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
kibana Bitnami | From 9.3.0 | 9.3.1 |
elk Bitnami | From 9.3.0 | 9.3.1 |
Products include Elastic Kibana.
How do I fix CVE-2026-26938?
Upgrade kibana to 9.3.1 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-26938 being exploited?
There is no known exploitation of CVE-2026-26938 in the wild and no public exploit code.
Other vulnerabilities in Elastic Kibana
Sources
Also known as BIT-elk-2026-26938, BIT-kibana-2026-26938, GHSA-9674-77c9-4xpr, MINI-32pp-h569-86r8.