Advisories

Kyverno before 1.18.0 Server-Side Request Forgery via apiCall

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severity
high
date
Affecting
  • kyverno >= 0, < 1.18.0

CWE
  • CWE-918 Server-Side Request Forgery (SSRF)
CVSS
8.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Credit
scumfrog
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.

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