CVE-2026-84196
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.
- Published Sep 1, 2026
- CVSS 8.3 high
- 0.4% chance of exploitation in the next 30 days (EPSS)
- A fix is available