High severity · published Apr 8, 2026
CVE-2026-33458
Server-Side Request Forgery (SSRF) in Kibana One Workflow Leading to Information Disclosure
7.7
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KI
Kibana · Elastic
9.3.0 through 9.3.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-33458
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-33458
Vendor Advisory
https://discuss.elastic.co/t/kibana-9-3-3-security-update-esa-2026-28/385815
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