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54 vulnerabilities by Kyverno
CVE-2026-84200 (GCVE-0-2026-84200)
Vulnerability from nvd – Published: 2026-09-01 11:34 – Updated: 2026-09-02 17:48
VLAI
EPSS
VEX
Title
Kyverno before v1.13.0 Policy Bypass via Multiple Exceptions
Summary
Kyverno versions v1.9.0 through v1.12.7 contain a policy exception handling flaw. When a policy in enforce mode is combined with two PolicyExceptions, the less restrictive exception takes precedence, allowing an attacker to bypass the policy by crafting a resource name that matches the second exception's name pattern (e.g., '*ingress*'). This can be used to circumvent policies such as one blocking hostPath volumes. Fixed in v1.13.0.
Severity
9 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 17:48 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/kyverno-befo… | third-party-advisory |
Impacted products
Date Public
2026-01-06 00:00
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CVE-2026-84199 (GCVE-0-2026-84199)
Vulnerability from nvd – Published: 2026-09-01 11:33 – Updated: 2026-09-01 15:26
VLAI
EPSS
VEX
Title
Kyverno before 1.16.2 SSRF via APICall Feature
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:25 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/kyverno-befo… | third-party-advisory |
Impacted products
Date Public
2026-04-13 00:00
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CVE-2026-84196 (GCVE-0-2026-84196)
Vulnerability from nvd – Published: 2026-09-01 11:33 – Updated: 2026-09-01 14:56
VLAI
EPSS
VEX
Title
Kyverno before 1.18.0 Server-Side Request Forgery via apiCall
Summary
Kyverno before 1.18.0 contains a server-side request forgery vulnerability in apiCall.service.url that allows authenticated users to send arbitrary HTTP requests by injecting user-controlled input through variable substitution. Attackers can target internal services, cloud metadata endpoints, and loopback addresses, with response data reflected in admission error messages enabling non-blind data exfiltration.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 14:15 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/kyverno-befo… | third-party-advisory |
Impacted products
Date Public
2026-04-13 00:00
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CVE-2026-84195 (GCVE-0-2026-84195)
Vulnerability from nvd – Published: 2026-09-01 11:33 – Updated: 2026-09-01 12:11
VLAI
EPSS
VEX
Title
Kyverno before 1.16.4 Credential Leak via apiCall
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 12:07 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/kyverno-befo… | third-party-advisory |
Impacted products
Date Public
2026-04-15 00:00
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CVE-2025-15613 (GCVE-0-2025-15613)
Vulnerability from nvd – Published: 2026-09-01 11:33 – Updated: 2026-09-01 12:15
VLAI
EPSS
VEX
Title
Kyverno before v1.13.4 SSRF via Service Call
Summary
Kyverno before v1.13.4 is vulnerable to server-side request forgery (SSRF) via its Service Call functionality. An attacker with permission to create Kyverno (Cluster)Policies can specify an external URL in a policy's apiCall/service configuration; although Service Call is documented for in-cluster services, it also resolves external addresses, allowing requests to an attacker-controlled server. Because policy context data (including contents of Kubernetes resources such as secrets) is sent in these requests, an attacker can exfiltrate sensitive cluster data.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 12:14 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/kyverno-befo… | third-party-advisory |
Impacted products
Date Public
2025-04-15 00:00
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CVE-2023-54356 (GCVE-0-2023-54356)
Vulnerability from nvd – Published: 2026-09-01 11:33 – Updated: 2026-09-04 01:49
VLAI
EPSS
VEX
Title
Kyverno before 1.9.5 Sweet32 Medium Strength Cipher Suites
Summary
Kyverno versions 1.9.4 and earlier support insecure 3DES cipher suites (TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA and TLS_RSA_WITH_3DES_EDE_CBC_SHA) on their TLS endpoints. These 64-bit block ciphers are vulnerable to the Sweet32 attack (CVE-2016-2183), which, over very long-lived TLS connections carrying large volumes of traffic, could allow an attacker to recover small amounts of plaintext. The issue is fixed in Kyverno 1.9.5 and 1.10.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 01:49 UTC
CWE
- CWE-326 - Inadequate Encryption Strength
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/kyverno-befo… | third-party-advisory |
Impacted products
Date Public
2023-05-29 00:00
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CVE-2026-54523 (GCVE-0-2026-54523)
Vulnerability from nvd – Published: 2026-08-26 14:20 – Updated: 2026-08-26 15:06
VLAI
EPSS
VEX
Title
Kyverno: NamespacedGeneratingPolicy generator.apply() namespace argument unvalidated -- background controller creates RoleBindings in any namespace including kube-system
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. From 1.18.0 until 1.18.2, the NamespacedMutatingPolicy CEL compiler exposes the generator library to matchConditions, allowing a namespace-scoped policy to invoke generator.apply(namespace, resources) with an arbitrary target namespace. The validation in pkg/cel/policies/mpol/validate.go checks that the policy compiles but does not enforce namespace scope, and GenerateResources in pkg/cel/libs/context.go does not reject the cross-namespace target. A user who can create NamespacedMutatingPolicy objects in one namespace can cause the admission controller, operating with cluster-wide privileges, to create ConfigMaps, NetworkPolicies, Secrets, RoleBindings, and other resources in another namespace, enabling unauthorized modification and potential privilege escalation. This issue is fixed in version 1.18.2.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 15:06 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
| https://github.com/kyverno/kyverno/pull/16238 | x_refsource_MISC |
| https://github.com/kyverno/kyverno/commit/0919553… | x_refsource_MISC |
| https://github.com/kyverno/kyverno/commit/5164bcd… | x_refsource_MISC |
| https://github.com/kyverno/sdk/commit/65739374414… | x_refsource_MISC |
| https://github.com/kyverno/kyverno/releases/tag/v1.18.2 | x_refsource_MISC |
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CVE-2026-44245 (GCVE-0-2026-44245)
Vulnerability from nvd – Published: 2026-05-12 22:46 – Updated: 2026-05-13 14:33
VLAI
EPSS
VEX
Title
Kyverno: [policy-reporter-ui] XSS via Stored Property Values in PropertyCard Component
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to 2.5.2, Vue 3's v-html directive is the framework-documented mechanism for injecting raw HTML, and it intentionally disables the auto-escaping that {{ }} interpolation provides. The PropertyCard.vue component uses v-html for the else branch of the URL check, meaning any non-URL string value flows directly into the DOM as HTML. The isURL() guard only filters values that parse as http: or https: URLs, so any HTML payload not starting with those schemes bypasses it entirely. The data originates from Kubernetes PolicyReport .results[].properties fields, which are arbitrary string maps populated by policy engines and potentially by any principal with write access to PolicyReport objects in the cluster. This vulnerability is fixed in 2.5.2.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 14:32 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
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CVE-2026-41485 (GCVE-0-2026-41485)
Vulnerability from nvd – Published: 2026-04-24 03:27 – Updated: 2026-04-24 18:53
VLAI
EPSS
VEX
Title
Kyverno Controller Denial of Service via forEach Mutation Panic
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.17.2 and 1.16.4, an unchecked type assertion in the `forEach` mutation handler allows any user with permission to create a `Policy` or `ClusterPolicy` to crash the cluster-wide background controller into a persistent CrashLoopBackOff. The same bug also causes the admission controller to drop connections and block all matching resource operations. The crash loop persists until the policy is deleted. The vulnerability is confined to the legacy engine, and CEL-based policies are unaffected. Versions 1.17.2 and 1.16.4 fix the issue.
Severity
7.7 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-24 18:52 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
| https://github.com/kyverno/kyverno/commit/76c8fdb… | x_refsource_MISC |
| https://github.com/kyverno/kyverno/commit/80e728c… | x_refsource_MISC |
Impacted products
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CVE-2026-41323 (GCVE-0-2026-41323)
Vulnerability from nvd – Published: 2026-04-24 03:21 – Updated: 2026-04-24 12:05
VLAI
EPSS
VEX
Title
Kyverno: ServiceAccount token leaked to external servers via apiCall service URL
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.18.0-rc1, 1.17.2-rc1, and 1.16.4, Kyverno's apiCall feature in ClusterPolicy automatically attaches the admission controller's ServiceAccount token to outgoing HTTP requests. The service URL has no validation — it can point anywhere, including attacker-controlled servers. Since the admission controller SA has permissions to patch webhook configurations, a stolen token leads to full cluster compromise. Versions 1.18.0-rc1, 1.17.2-rc1, and 1.16.4 patch the issue.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-24 12:04 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
| https://github.com/kyverno/kyverno/commit/bc4f91c… | x_refsource_MISC |
| https://github.com/kyverno/kyverno/commit/c2eab00… | x_refsource_MISC |
| https://github.com/kyverno/kyverno/commit/f70e8ac… | x_refsource_MISC |
Impacted products
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CVE-2026-41068 (GCVE-0-2026-41068)
Vulnerability from nvd – Published: 2026-04-24 03:14 – Updated: 2026-04-24 16:22
VLAI
EPSS
VEX
Title
Kyverno: Cross-Namespace Read Bypasses RBAC Isolation (CVE-2026-22039 Incomplete Fix)
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. The patch for CVE-2026-22039 fixed cross-namespace privilege escalation in Kyverno's `apiCall` context by validating the `URLPath` field. However, the ConfigMap context loader has the identical vulnerability — the `configMap.namespace` field accepts any namespace with zero validation, allowing a namespace admin to read ConfigMaps from any namespace using Kyverno's privileged service account. This is a complete RBAC bypass in multi-tenant Kubernetes clusters. An updated fix is available in version 1.17.2.
Severity
7.7 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-24 16:21 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
| https://github.com/kyverno/kyverno/commit/bbf3e5c… | x_refsource_MISC |
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CVE-2026-40868 (GCVE-0-2026-40868)
Vulnerability from nvd – Published: 2026-04-21 18:22 – Updated: 2026-04-22 13:35
VLAI
EPSS
VEX
Title
kyverno apicall servicecall implicit bearer token injection leaks kyverno serviceaccount token
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to 1.16.4, kyverno’s apiCall servicecall helper implicitly injects Authorization: Bearer ... using the kyverno controller serviceaccount token when a policy does not explicitly set an Authorization header. Because context.apiCall.service.url is policy-controlled, this can send the kyverno serviceaccount token to an attacker-controlled endpoint (confused deputy). Namespaced policies are blocked from servicecall usage by the namespaced urlPath gate in pkg/engine/apicall/apiCall.go, so this report is scoped to ClusterPolicy and global context usage. This vulnerability is fixed in 1.16.4.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 13:34 UTC
CWE
- CWE-922 - Insecure Storage of Sensitive Information
Assigner
References
1 reference
| URL | Tags |
|---|---|
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CVE-2026-4789 (GCVE-0-2026-4789)
Vulnerability from nvd – Published: 2026-03-30 20:44 – Updated: 2026-04-01 18:43
VLAI
EPSS
VEX
Title
CVE-2026-4789
Summary
Kyverno, versions 1.16.0 and later, are vulnerable to SSRF due to unrestricted CEL HTTP functions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-01 18:43 UTC
Assigner
References
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CVE-2026-23881 (GCVE-0-2026-23881)
Vulnerability from nvd – Published: 2026-01-27 16:10 – Updated: 2026-01-27 16:33
VLAI
EPSS
VEX
Title
Kyverno Denial of Service via Context Variable Amplification in Policy Engine
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have unbounded memory consumption in Kyverno's policy engine that allows users with policy creation privileges to cause denial of service by crafting policies that exponentially amplify string data through context variables. Versions 1.16.3 and 1.15.3 contain a patch for the vulnerability.
Severity
7.7 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-27 16:32 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
| https://github.com/kyverno/kyverno/commit/7a651be… | x_refsource_MISC |
| https://github.com/kyverno/kyverno/commit/f5617f6… | x_refsource_MISC |
Impacted products
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CVE-2026-22039 (GCVE-0-2026-22039)
Vulnerability from nvd – Published: 2026-01-27 16:07 – Updated: 2026-01-27 16:42
VLAI
EPSS
VEX
Title
Kyverno Cross-Namespace Privilege Escalation via Policy apiCall
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have a critical authorization boundary bypass in namespaced Kyverno Policy apiCall. The resolved `urlPath` is executed using the Kyverno admission controller ServiceAccount, with no enforcement that the request is limited to the policy’s namespace. As a result, any authenticated user with permission to create a namespaced Policy can cause Kyverno to perform Kubernetes API requests using Kyverno’s admission controller identity, targeting any API path allowed by that ServiceAccount’s RBAC. This breaks namespace isolation by enabling cross-namespace reads (for example, ConfigMaps and, where permitted, Secrets) and allows cluster-scoped or cross-namespace writes (for example, creating ClusterPolicies) by controlling the urlPath through context variable substitution. Versions 1.16.3 and 1.15.3 contain a patch for the vulnerability.
Severity
10 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-27 16:41 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
| https://github.com/kyverno/kyverno/commit/e0ba4de… | x_refsource_MISC |
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Impacted products
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CVE-2026-84200 (GCVE-0-2026-84200)
Vulnerability from cvelistv5 – Published: 2026-09-01 11:34 – Updated: 2026-09-02 17:48
VLAI
EPSS
VEX
Title
Kyverno before v1.13.0 Policy Bypass via Multiple Exceptions
Summary
Kyverno versions v1.9.0 through v1.12.7 contain a policy exception handling flaw. When a policy in enforce mode is combined with two PolicyExceptions, the less restrictive exception takes precedence, allowing an attacker to bypass the policy by crafting a resource name that matches the second exception's name pattern (e.g., '*ingress*'). This can be used to circumvent policies such as one blocking hostPath volumes. Fixed in v1.13.0.
Severity
9 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 17:48 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/kyverno-befo… | third-party-advisory |
Impacted products
Date Public
2026-01-06 00:00
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CVE-2026-84199 (GCVE-0-2026-84199)
Vulnerability from cvelistv5 – Published: 2026-09-01 11:33 – Updated: 2026-09-01 15:26
VLAI
EPSS
VEX
Title
Kyverno before 1.16.2 SSRF via APICall Feature
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:25 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/kyverno-befo… | third-party-advisory |
Impacted products
Date Public
2026-04-13 00:00
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CVE-2026-84196 (GCVE-0-2026-84196)
Vulnerability from cvelistv5 – Published: 2026-09-01 11:33 – Updated: 2026-09-01 14:56
VLAI
EPSS
VEX
Title
Kyverno before 1.18.0 Server-Side Request Forgery via apiCall
Summary
Kyverno before 1.18.0 contains a server-side request forgery vulnerability in apiCall.service.url that allows authenticated users to send arbitrary HTTP requests by injecting user-controlled input through variable substitution. Attackers can target internal services, cloud metadata endpoints, and loopback addresses, with response data reflected in admission error messages enabling non-blind data exfiltration.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 14:15 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
2 references
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|---|---|
| https://github.com/kyverno/kyverno/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/kyverno-befo… | third-party-advisory |
Impacted products
Date Public
2026-04-13 00:00
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CVE-2026-84195 (GCVE-0-2026-84195)
Vulnerability from cvelistv5 – Published: 2026-09-01 11:33 – Updated: 2026-09-01 12:11
VLAI
EPSS
VEX
Title
Kyverno before 1.16.4 Credential Leak via apiCall
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 12:07 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
2 references
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|---|---|
| https://github.com/kyverno/kyverno/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/kyverno-befo… | third-party-advisory |
Impacted products
Date Public
2026-04-15 00:00
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CVE-2025-15613 (GCVE-0-2025-15613)
Vulnerability from cvelistv5 – Published: 2026-09-01 11:33 – Updated: 2026-09-01 12:15
VLAI
EPSS
VEX
Title
Kyverno before v1.13.4 SSRF via Service Call
Summary
Kyverno before v1.13.4 is vulnerable to server-side request forgery (SSRF) via its Service Call functionality. An attacker with permission to create Kyverno (Cluster)Policies can specify an external URL in a policy's apiCall/service configuration; although Service Call is documented for in-cluster services, it also resolves external addresses, allowing requests to an attacker-controlled server. Because policy context data (including contents of Kubernetes resources such as secrets) is sent in these requests, an attacker can exfiltrate sensitive cluster data.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 12:14 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/kyverno-befo… | third-party-advisory |
Impacted products
Date Public
2025-04-15 00:00
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CVE-2023-54356 (GCVE-0-2023-54356)
Vulnerability from cvelistv5 – Published: 2026-09-01 11:33 – Updated: 2026-09-04 01:49
VLAI
EPSS
VEX
Title
Kyverno before 1.9.5 Sweet32 Medium Strength Cipher Suites
Summary
Kyverno versions 1.9.4 and earlier support insecure 3DES cipher suites (TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA and TLS_RSA_WITH_3DES_EDE_CBC_SHA) on their TLS endpoints. These 64-bit block ciphers are vulnerable to the Sweet32 attack (CVE-2016-2183), which, over very long-lived TLS connections carrying large volumes of traffic, could allow an attacker to recover small amounts of plaintext. The issue is fixed in Kyverno 1.9.5 and 1.10.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 01:49 UTC
CWE
- CWE-326 - Inadequate Encryption Strength
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/kyverno-befo… | third-party-advisory |
Impacted products
Date Public
2023-05-29 00:00
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CVE-2026-54523 (GCVE-0-2026-54523)
Vulnerability from cvelistv5 – Published: 2026-08-26 14:20 – Updated: 2026-08-26 15:06
VLAI
EPSS
VEX
Title
Kyverno: NamespacedGeneratingPolicy generator.apply() namespace argument unvalidated -- background controller creates RoleBindings in any namespace including kube-system
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. From 1.18.0 until 1.18.2, the NamespacedMutatingPolicy CEL compiler exposes the generator library to matchConditions, allowing a namespace-scoped policy to invoke generator.apply(namespace, resources) with an arbitrary target namespace. The validation in pkg/cel/policies/mpol/validate.go checks that the policy compiles but does not enforce namespace scope, and GenerateResources in pkg/cel/libs/context.go does not reject the cross-namespace target. A user who can create NamespacedMutatingPolicy objects in one namespace can cause the admission controller, operating with cluster-wide privileges, to create ConfigMaps, NetworkPolicies, Secrets, RoleBindings, and other resources in another namespace, enabling unauthorized modification and potential privilege escalation. This issue is fixed in version 1.18.2.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 15:06 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
| https://github.com/kyverno/kyverno/pull/16238 | x_refsource_MISC |
| https://github.com/kyverno/kyverno/commit/0919553… | x_refsource_MISC |
| https://github.com/kyverno/kyverno/commit/5164bcd… | x_refsource_MISC |
| https://github.com/kyverno/sdk/commit/65739374414… | x_refsource_MISC |
| https://github.com/kyverno/kyverno/releases/tag/v1.18.2 | x_refsource_MISC |
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CVE-2026-44245 (GCVE-0-2026-44245)
Vulnerability from cvelistv5 – Published: 2026-05-12 22:46 – Updated: 2026-05-13 14:33
VLAI
EPSS
VEX
Title
Kyverno: [policy-reporter-ui] XSS via Stored Property Values in PropertyCard Component
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to 2.5.2, Vue 3's v-html directive is the framework-documented mechanism for injecting raw HTML, and it intentionally disables the auto-escaping that {{ }} interpolation provides. The PropertyCard.vue component uses v-html for the else branch of the URL check, meaning any non-URL string value flows directly into the DOM as HTML. The isURL() guard only filters values that parse as http: or https: URLs, so any HTML payload not starting with those schemes bypasses it entirely. The data originates from Kubernetes PolicyReport .results[].properties fields, which are arbitrary string maps populated by policy engines and potentially by any principal with write access to PolicyReport objects in the cluster. This vulnerability is fixed in 2.5.2.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 14:32 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
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CVE-2026-41485 (GCVE-0-2026-41485)
Vulnerability from cvelistv5 – Published: 2026-04-24 03:27 – Updated: 2026-04-24 18:53
VLAI
EPSS
VEX
Title
Kyverno Controller Denial of Service via forEach Mutation Panic
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.17.2 and 1.16.4, an unchecked type assertion in the `forEach` mutation handler allows any user with permission to create a `Policy` or `ClusterPolicy` to crash the cluster-wide background controller into a persistent CrashLoopBackOff. The same bug also causes the admission controller to drop connections and block all matching resource operations. The crash loop persists until the policy is deleted. The vulnerability is confined to the legacy engine, and CEL-based policies are unaffected. Versions 1.17.2 and 1.16.4 fix the issue.
Severity
7.7 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-24 18:52 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
| https://github.com/kyverno/kyverno/commit/76c8fdb… | x_refsource_MISC |
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Impacted products
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CVE-2026-41323 (GCVE-0-2026-41323)
Vulnerability from cvelistv5 – Published: 2026-04-24 03:21 – Updated: 2026-04-24 12:05
VLAI
EPSS
VEX
Title
Kyverno: ServiceAccount token leaked to external servers via apiCall service URL
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.18.0-rc1, 1.17.2-rc1, and 1.16.4, Kyverno's apiCall feature in ClusterPolicy automatically attaches the admission controller's ServiceAccount token to outgoing HTTP requests. The service URL has no validation — it can point anywhere, including attacker-controlled servers. Since the admission controller SA has permissions to patch webhook configurations, a stolen token leads to full cluster compromise. Versions 1.18.0-rc1, 1.17.2-rc1, and 1.16.4 patch the issue.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-24 12:04 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
| https://github.com/kyverno/kyverno/commit/bc4f91c… | x_refsource_MISC |
| https://github.com/kyverno/kyverno/commit/c2eab00… | x_refsource_MISC |
| https://github.com/kyverno/kyverno/commit/f70e8ac… | x_refsource_MISC |
Impacted products
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CVE-2026-41068 (GCVE-0-2026-41068)
Vulnerability from cvelistv5 – Published: 2026-04-24 03:14 – Updated: 2026-04-24 16:22
VLAI
EPSS
VEX
Title
Kyverno: Cross-Namespace Read Bypasses RBAC Isolation (CVE-2026-22039 Incomplete Fix)
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. The patch for CVE-2026-22039 fixed cross-namespace privilege escalation in Kyverno's `apiCall` context by validating the `URLPath` field. However, the ConfigMap context loader has the identical vulnerability — the `configMap.namespace` field accepts any namespace with zero validation, allowing a namespace admin to read ConfigMaps from any namespace using Kyverno's privileged service account. This is a complete RBAC bypass in multi-tenant Kubernetes clusters. An updated fix is available in version 1.17.2.
Severity
7.7 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-24 16:21 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
| https://github.com/kyverno/kyverno/commit/bbf3e5c… | x_refsource_MISC |
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CVE-2026-40868 (GCVE-0-2026-40868)
Vulnerability from cvelistv5 – Published: 2026-04-21 18:22 – Updated: 2026-04-22 13:35
VLAI
EPSS
VEX
Title
kyverno apicall servicecall implicit bearer token injection leaks kyverno serviceaccount token
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to 1.16.4, kyverno’s apiCall servicecall helper implicitly injects Authorization: Bearer ... using the kyverno controller serviceaccount token when a policy does not explicitly set an Authorization header. Because context.apiCall.service.url is policy-controlled, this can send the kyverno serviceaccount token to an attacker-controlled endpoint (confused deputy). Namespaced policies are blocked from servicecall usage by the namespaced urlPath gate in pkg/engine/apicall/apiCall.go, so this report is scoped to ClusterPolicy and global context usage. This vulnerability is fixed in 1.16.4.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 13:34 UTC
CWE
- CWE-922 - Insecure Storage of Sensitive Information
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
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CVE-2026-4789 (GCVE-0-2026-4789)
Vulnerability from cvelistv5 – Published: 2026-03-30 20:44 – Updated: 2026-04-01 18:43
VLAI
EPSS
VEX
Title
CVE-2026-4789
Summary
Kyverno, versions 1.16.0 and later, are vulnerable to SSRF due to unrestricted CEL HTTP functions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-01 18:43 UTC
Assigner
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CVE-2026-23881 (GCVE-0-2026-23881)
Vulnerability from cvelistv5 – Published: 2026-01-27 16:10 – Updated: 2026-01-27 16:33
VLAI
EPSS
VEX
Title
Kyverno Denial of Service via Context Variable Amplification in Policy Engine
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have unbounded memory consumption in Kyverno's policy engine that allows users with policy creation privileges to cause denial of service by crafting policies that exponentially amplify string data through context variables. Versions 1.16.3 and 1.15.3 contain a patch for the vulnerability.
Severity
7.7 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-27 16:32 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
| https://github.com/kyverno/kyverno/commit/7a651be… | x_refsource_MISC |
| https://github.com/kyverno/kyverno/commit/f5617f6… | x_refsource_MISC |
Impacted products
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CVE-2026-22039 (GCVE-0-2026-22039)
Vulnerability from cvelistv5 – Published: 2026-01-27 16:07 – Updated: 2026-01-27 16:42
VLAI
EPSS
VEX
Title
Kyverno Cross-Namespace Privilege Escalation via Policy apiCall
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have a critical authorization boundary bypass in namespaced Kyverno Policy apiCall. The resolved `urlPath` is executed using the Kyverno admission controller ServiceAccount, with no enforcement that the request is limited to the policy’s namespace. As a result, any authenticated user with permission to create a namespaced Policy can cause Kyverno to perform Kubernetes API requests using Kyverno’s admission controller identity, targeting any API path allowed by that ServiceAccount’s RBAC. This breaks namespace isolation by enabling cross-namespace reads (for example, ConfigMaps and, where permitted, Secrets) and allows cluster-scoped or cross-namespace writes (for example, creating ClusterPolicies) by controlling the urlPath through context variable substitution. Versions 1.16.3 and 1.15.3 contain a patch for the vulnerability.
Severity
10 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-27 16:41 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/kyverno/kyverno/security/advis… | x_refsource_CONFIRM |
| https://github.com/kyverno/kyverno/commit/e0ba4de… | x_refsource_MISC |
| https://github.com/kyverno/kyverno/commit/eba60fa… | x_refsource_MISC |
Impacted products
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