PT-2026-84158 · Kyverno · Kyverno
CVSS v4.0
8.3
High
| Vector | AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N |
Name of the Vulnerable Software and Affected Versions
Kyverno versions prior to 1.16.4
Description
In apiCall service mode, the admission controller automatically attaches its ServiceAccount token to outbound HTTP requests when explicit authorization headers are absent. This allows an attacker to exfiltrate the token by directing apiCall requests to external or attacker-controlled endpoints, potentially granting full control over cluster resources and Kyverno policies.
Recommendations
Update to version 1.16.4 or later.
Exploit
Fix
Insufficiently Protected Credentials
Information Disclosure
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Related Identifiers
Affected Products
Kyverno