CVE-2026-33458
Server-Side Request Forgery (SSRF) in Kibana One Workflow Leading to Information Disclosure
Description
Server-Side Request Forgery (CWE-918) in Kibana One Workflow can lead to information disclosure. An authenticated user with workflow creation and execution privileges can bypass host allowlist restrictions in the Workflows Execution Engine, potentially exposing sensitive internal endpoints and data.
INFO
Published Date :
April 8, 2026, 6:26 p.m.
Last Modified :
April 13, 2026, 11:30 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 271b6943-45a9-4f3a-ab4e-976f3fa05b5a | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Kibana to the latest version.
- Review and restrict workflow execution privileges.
- Implement stricter host allowlist checks.
- Monitor for suspicious network activity.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-33458.
| URL | Resource |
|---|---|
| https://discuss.elastic.co/t/kibana-9-3-3-security-update-esa-2026-28/385815 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-33458 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-33458
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-33458 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-33458 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 13, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:* versions from (including) 9.3.0 up to (excluding) 9.3.3 Added Reference Type Elastic: https://discuss.elastic.co/t/kibana-9-3-3-security-update-esa-2026-28/385815 Types: Vendor Advisory -
New CVE Received by [email protected]
Apr. 08, 2026
Action Type Old Value New Value Added Description Server-Side Request Forgery (CWE-918) in Kibana One Workflow can lead to information disclosure. An authenticated user with workflow creation and execution privileges can bypass host allowlist restrictions in the Workflows Execution Engine, potentially exposing sensitive internal endpoints and data. Added CVSS V3.1 AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N Added CWE CWE-918 Added Reference https://discuss.elastic.co/t/kibana-9-3-3-security-update-esa-2026-28/385815