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Vulnerability record · CVE-2026-84195 · published 1 September 2026

CVE-2026-84195: Information exposure vulnerability

Kyverno before 1.16.4 automatically attaches the admission controller's ServiceAccount token to outbound HTTP requests in apiCall service mode without explicit authorization headers. Attackers can exfiltrate the token by directing apiCall requests to external or attacker-controlled endpoints, gaining full control over Kyverno policies and cluster resources.

8.3 CVSS 4.0 High EPSS 0.39% · top 70.0% CWE-200 · Information exposure Awaiting Analysis
8.3CVSS 4.0 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
10 Sep 2026Last modified by NVD

Description

Kyverno before 1.16.4 automatically attaches the admission controller's ServiceAccount token to outbound HTTP requests in apiCall service mode without explicit authorization headers. Attackers can exfiltrate the token by directing apiCall requests to external or attacker-controlled endpoints, gaining full control over Kyverno policies and cluster resources.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/kyverno/kyverno/security/advisories/GHSA-8wfp-579w-6r25
https://www.vulncheck.com/advisories/kyverno-before-1.16.4-credential-leak-via-apicall
https://github.com/kyverno/kyverno/security/advisories/GHSA-8wfp-579w-6r25

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Source: NIST National Vulnerability Database (record CVE-2026-84195), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.