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HIGH

CVE-2026-84196

CVSS v3

7.7

HIGH

EPSS Score

0.4 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2026-09-01
Last Modified
2026-09-01

Frequently asked questions

What is 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.

Is CVE-2026-84196 actively exploited?

Active exploitation of CVE-2026-84196 has not been confirmed. Its EPSS score was 0.4% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-84196?

CVE-2026-84196 has a CVSS v3 base score of 7.7 (HIGH severity).

Is CVE-2026-84196 affecting your environment?

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