What is CVE-2026-84196?

CVE-2026-84196 is a high-severity vulnerability in Kyverno, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.7/10. Published 2026-09-01.

How severe is CVE-2026-84196?

High severity. CVSS v3 base score is 7.7 out of 10.

SSRF in Kyverno

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.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-09-01 · last modified 2026-09-10.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (27.5th percentile), scored 2026-10-17.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Kyverno

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

github.com/kyverno/kyverno/security/advisories/GHSA-qr4g-8hrp-c4rw (vendor-advisory)
www.vulncheck.com/advisories/kyverno-before-1.18.0-server-side-request-forgery-… (third-party-advisory)

Frequently asked questions

What is CVE-2026-84196?: CVE-2026-84196 is a high-severity vulnerability in Kyverno, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.7/10. Published 2026-09-01.
How severe is CVE-2026-84196?: High severity. CVSS v3 base score is 7.7 out of 10.