CVE-2026-4789
Received
Received - Intake
SSRF Vulnerability in Kyverno CEL HTTP Functions (v
Publication date: 2026-03-30
Last updated on: 2026-04-03
Assigner: CERT/CC
Description
Description
Kyverno, versions 1.16.0 and later, are vulnerable to SSRF due to unrestricted CEL HTTP functions.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| kyverno | kyverno | From 1.16.0 (inc) to 1.17.1 (inc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-918 | The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability affects Kyverno versions 1.16.0 and later. It is a Server-Side Request Forgery (SSRF) issue caused by unrestricted Common Expression Language (CEL) HTTP functions.
How can this vulnerability impact me? :
An attacker could exploit the SSRF vulnerability to make unauthorized HTTP requests from the Kyverno server. This could potentially allow the attacker to access internal resources or services that are not normally accessible.
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