Kyverno before 1.16.2 contains a server-side request forgery (SSRF) vulnerability in the APICall feature. The URL field in a Policy's ServiceCall configuration is not validated, so a user with namespace-level Policy creation permissions can direct Kyverno to make HTTP requests to arbitrary internal resources (e.g., cloud metadata endpoints such as 169.254.169.254 or other tenants' resources). Because Kyverno executes these requests using its cluster-wide high-privilege ServiceAccount (a Confused Deputy problem), the responses—potentially including other tenants' secrets and cloud IAM credentials—are returned in the PolicyReport and can be read by the attacker, breaking multi-tenant isolation.
Metrics
Affected Vendors & Products
References
History
Tue, 01 Sep 2026 22:00:00 +0000
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| Metrics |
ssvc
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Tue, 01 Sep 2026 11:45:00 +0000
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| Description | Kyverno before 1.16.2 contains a server-side request forgery (SSRF) vulnerability in the APICall feature. The URL field in a Policy's ServiceCall configuration is not validated, so a user with namespace-level Policy creation permissions can direct Kyverno to make HTTP requests to arbitrary internal resources (e.g., cloud metadata endpoints such as 169.254.169.254 or other tenants' resources). Because Kyverno executes these requests using its cluster-wide high-privilege ServiceAccount (a Confused Deputy problem), the responses—potentially including other tenants' secrets and cloud IAM credentials—are returned in the PolicyReport and can be read by the attacker, breaking multi-tenant isolation. | |
| Title | Kyverno before 1.16.2 SSRF via APICall Feature | |
| First Time appeared |
Kyverno
Kyverno kyverno |
|
| Weaknesses | CWE-918 | |
| CPEs | cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Kyverno
Kyverno kyverno |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-09-01T11:33:59.739Z
Updated: 2026-09-01T15:26:07.044Z
Reserved: 2026-09-01T11:03:27.972Z
Link: CVE-2026-84199
Updated: 2026-09-01T15:26:03.932Z
Status : Received
Published: 2026-09-01T12:17:49.407
Modified: 2026-09-01T16:17:33.853
Link: CVE-2026-84199
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