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CVE-2026-84195— Kyverno before 1.16.4 Credential Leak via apiCall

Quick assessment

Affected
kyverno kyverno
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Kyverno是Kyverno团队开源的一款云原生安全基线管理工具。 Kyverno 1.16.4之前版本存在信息泄露漏洞，该漏洞源于在apiCall服务模式下自动将准入控制器的ServiceAccount令牌附加到出站HTTP请求且未进行显式授权，可能导致攻击者将apiCall请求定向到外部或攻击者控制的端点来窃取令牌，从而完全控制Kyverno策略和集群资源。

CVSS 7.7 · High EPSS 0.39% · P31

Affected Version Matrix 2

VendorProduct Version RangeStatus
kyverno kyverno < 1.16.4 affected
1.16.4 unaffected
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I. Basic Information for CVE-2026-84195

Vulnerability Information
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Vulnerability Title
Kyverno before 1.16.4 Credential Leak via apiCall
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Kyverno 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kyverno是Kyverno团队开源的一款云原生安全基线管理工具。 Kyverno 1.16.4之前版本存在信息泄露漏洞，该漏洞源于在apiCall服务模式下自动将准入控制器的ServiceAccount令牌附加到出站HTTP请求且未进行显式授权，可能导致攻击者将apiCall请求定向到外部或攻击者控制的端点来窃取令牌，从而完全控制Kyverno策略和集群资源。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
kyverno kyverno 0 ~ 1.16.4 -

II. Public POCs for CVE-2026-84195

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III. Intelligence Information for CVE-2026-84195

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Vendor Advisories for CVE-2026-84195 (2)

Same Patch Batch · kyverno · 2026-09-01 · 6 CVEs total

CVE-2026-84200 9.0 CRITICAL Kyverno before v1.13.0 Policy Bypass via Multiple Exceptions
CVE-2026-84199 7.7 HIGH Kyverno before 1.16.2 SSRF via APICall Feature
CVE-2026-84196 7.7 HIGH Kyverno before 1.18.0 Server-Side Request Forgery via apiCall
CVE-2025-15613 6.5 MEDIUM Kyverno before v1.13.4 SSRF via Service Call
CVE-2023-54356 3.7 LOW Kyverno before 1.9.5 Sweet32 Medium Strength Cipher Suites

IV. Related Vulnerabilities

Same product: kyverno
Same vendor: kyverno
Same weakness: CWE-200

V. Comments for CVE-2026-84195

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