Information disclosure in Kyverno
CVE-2026-84195
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.
Vulnerability class: Information Disclosure
Published · last modified .
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 (31.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.0% 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
Weakness classification (CWE)
References
- github.com/kyverno/kyverno/security/advisories/GHSA-8wfp-579w-6r25 (vendor-advisory)
- www.vulncheck.com/advisories/kyverno-before-1.16.4-credential-leak-via-apicall (third-party-advisory)
Frequently asked questions
- What is CVE-2026-84195?
- CVE-2026-84195 is a high-severity vulnerability in Kyverno, classified under Information Disclosure. CVSS score: 7.7/10. Published 2026-09-01.
- How severe is CVE-2026-84195?
- High severity. CVSS v3 base score is 7.7 out of 10.