{"id":"CVE-2026-84196","title":"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","summary":"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…","severity":"high","cvss":7.7,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","cwe":["CWE-918"],"vendor":"kyverno","product":"github.com/kyverno/kyverno","affected":["github.com/kyverno/kyverno <= 1.17.1"],"published":"2026-09-01","updated":"2026-09-10","sourceUpdated":"2026-09-10T15:43:03.760","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84196","references":[{"url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-qr4g-8hrp-c4rw","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/kyverno-before-1.18.0-server-side-request-forgery-via-apicall","label":"disclosure@vulncheck.com"},{"url":"https://github.com/kyverno/kyverno"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-84196.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-84196"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-84196"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84196"}],"tags":["nvd","osv","go","csaf","vex","red-hat"],"epss":0.00263,"epssPercentile":0.184,"aliases":["GHSA-qr4g-8hrp-c4rw","GO-2026-5594"],"ecosystem":"go","ingestedAt":"2026-09-02T19:31:27.051Z","slug":"CVE-2026-84196","body":"## Overview\n\nKyverno 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-84196)\n\nAffected packages:\n\n- `github.com/kyverno/kyverno <= 1.17.1`\n\nSource: https://osv.dev/vulnerability/GHSA-qr4g-8hrp-c4rw\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-09-11 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-84196.json)","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":42.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}