CVE-2026-84196

HighCVSS 7.7/10Last modified Sep 10, 2026

Description

Kyverno before 1.18.0 contains a server-side request forgery vulnerability in apiCall.service.url that allows authenticated users to send arbitrary HTTP requests by injecting user-controlled input through variable substitution. Attackers can target internal services, cloud metadata endpoints, and loopback addresses, with response data reflected in admission error messages enabling non-blind data exfiltration.

Metrics

CVSS 3.1 7.7/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Weakness enumeration

CWE-918

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
kyverno	kyverno	< 1.18.0

References

Timeline

Published: Sep 1, 2026
Last modified: Sep 10, 2026
NVD status: Awaiting Analysis

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