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64 vulnerabilities by kyverno
CVE-2026-100707 (GCVE-0-2026-100707)
Vulnerability from nvd – Published: 2026-09-26 13:24 – Updated: 2026-09-26 13:24
VLAI
EPSS
VEX
Title
Kyverno before 1.19.1 Namespace Isolation Bypass via Percent-Encoded Path
Summary
Kyverno before 1.19.1 contains a namespace isolation bypass in the apiCall context entry of namespaced Policy resources due to inconsistent path interpretation between validation and execution. A low-privilege tenant can use percent-encoded dot-segments in urlPath to bypass namespace checks and read resources from other namespaces using the Kyverno admission controller's ServiceAccount credentials.
Severity
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
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
2026-09-10 00:00
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CVE-2026-100706 (GCVE-0-2026-100706)
Vulnerability from nvd – Published: 2026-09-26 13:24 – Updated: 2026-09-26 23:08
VLAI
EPSS
VEX
Title
kyverno before 1.19.1 Privilege Escalation via Policy apiCall urlPath
Summary
kyverno before 1.19.1 fails to properly validate URL-encoded path segments in Policy apiCall urlPath, allowing namespace tenants to bypass the per-namespace clamp and create objects in other namespaces as the admission-controller ServiceAccount. Attackers can exploit this by using percent-encoded directory traversal sequences to create MutatingWebhookConfiguration objects cluster-wide or PolicyException objects in the kyverno namespace, enabling privilege escalation to cluster admin.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-26 23:08 UTC
CWE
- CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
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
2026-09-10 00:00
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CVE-2026-100705 (GCVE-0-2026-100705)
Vulnerability from nvd – Published: 2026-09-26 13:23 – Updated: 2026-09-26 23:10
VLAI
EPSS
VEX
Title
Kyverno before 1.19.1 SSRF via legacy apiCall service executor
Summary
Kyverno before 1.19.1 is vulnerable to server-side request forgery. The default egress blocklist (169.254.169.254, 169.254.169.253, metadata.google.internal, 127.0.0.0/8, ::1/128) and the scoped-token control were wired only into the new CEL http.Get/Post library and were never applied to the legacy apiCall service executor (pkg/engine/apicall/executor.go) or to the GlobalContextEntry external-API path, which handle every non-CEL context[].apiCall.service call. Because these paths use a plain net/http client with no egress filtering and no validation of the configured service URL, a ClusterPolicy or GlobalContextEntry author — or, where a deployed policy templates the service URL from the admission resource, a lower-privileged resource submitter — can cause Kyverno to issue GET/POST requests to an arbitrary host, including the cloud metadata endpoint, loopback, and any in-cluster service, reading cloud instance credentials and reaching internal endpoints with Kyverno's network position. The executor also unconditionally attaches Kyverno's projected ServiceAccount token to the attacker-chosen destination; the token is audience-scoped, limiting its replay value. Fixed in 1.19.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-26 23:10 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
2026-09-10 00:00
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CVE-2026-100704 (GCVE-0-2026-100704)
Vulnerability from nvd – Published: 2026-09-26 13:23 – Updated: 2026-09-26 13:23
VLAI
EPSS
VEX
Title
Kyverno before 1.19.1 ImageValidatingPolicy Exception Bypass
Summary
Kyverno is a policy engine for Kubernetes. In versions 1.14.0 through 1.19.0, the ImageValidatingPolicy (policies.kyverno.io/v1beta1) evaluator never reads the spec.images and spec.allowedValues fields of a PolicyException. Any PolicyException whose policyRefs and matchConditions match a resource causes image signature verification to be skipped for the entire resource rather than only for the listed images or values, so an exception intended to exempt a single trusted image exempts every image on the matched resource(s). As a result, unsigned or untrusted images can be admitted to the cluster without signature verification. This differs from ValidatingPolicy, GeneratingPolicy, and MutatingPolicy, which treat the same field as a partial exemption. The issue is fixed in version 1.19.1.
Severity
CWE
- CWE-863 - Incorrect Authorization
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
2026-09-10 00:00
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CVE-2026-100703 (GCVE-0-2026-100703)
Vulnerability from nvd – Published: 2026-09-26 13:23 – Updated: 2026-09-26 13:23
VLAI
EPSS
VEX
Title
Kyverno before 1.19.1 Cross-Namespace Data Access via globalcontext.Lib
Summary
Kyverno 1.16.0 through 1.19.0 registers the globalcontext.Lib CEL library in its policy environment without confining it to the policy's namespace, unlike the sibling libraries (resource.Lib, http.Lib, configMap loader) which are handed the policy namespace. A tenant who can create a namespaced policy (e.g. NamespacedValidatingPolicy, and likewise the namespaced mutating, deleting, generating, and image-validating policy kinds) in their own namespace can call globalContext.get("<entry>", "") and receive the full cached contents of a cluster-scoped GlobalContextEntry, including data cached from namespaces the tenant has no RBAC permission to read. No admission validation rejects such calls. Fixed in 1.19.1.
Severity
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
2026-09-10 00:00
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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
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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 |
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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
2026-01-06 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
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|---|---|
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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 |
|---|---|
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CVE-2026-100707 (GCVE-0-2026-100707)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:24 – Updated: 2026-09-26 13:24
VLAI
EPSS
VEX
Title
Kyverno before 1.19.1 Namespace Isolation Bypass via Percent-Encoded Path
Summary
Kyverno before 1.19.1 contains a namespace isolation bypass in the apiCall context entry of namespaced Policy resources due to inconsistent path interpretation between validation and execution. A low-privilege tenant can use percent-encoded dot-segments in urlPath to bypass namespace checks and read resources from other namespaces using the Kyverno admission controller's ServiceAccount credentials.
Severity
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
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
2026-09-10 00:00
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CVE-2026-100706 (GCVE-0-2026-100706)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:24 – Updated: 2026-09-26 23:08
VLAI
EPSS
VEX
Title
kyverno before 1.19.1 Privilege Escalation via Policy apiCall urlPath
Summary
kyverno before 1.19.1 fails to properly validate URL-encoded path segments in Policy apiCall urlPath, allowing namespace tenants to bypass the per-namespace clamp and create objects in other namespaces as the admission-controller ServiceAccount. Attackers can exploit this by using percent-encoded directory traversal sequences to create MutatingWebhookConfiguration objects cluster-wide or PolicyException objects in the kyverno namespace, enabling privilege escalation to cluster admin.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-26 23:08 UTC
CWE
- CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
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
2026-09-10 00:00
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CVE-2026-100705 (GCVE-0-2026-100705)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-09-26 23:10
VLAI
EPSS
VEX
Title
Kyverno before 1.19.1 SSRF via legacy apiCall service executor
Summary
Kyverno before 1.19.1 is vulnerable to server-side request forgery. The default egress blocklist (169.254.169.254, 169.254.169.253, metadata.google.internal, 127.0.0.0/8, ::1/128) and the scoped-token control were wired only into the new CEL http.Get/Post library and were never applied to the legacy apiCall service executor (pkg/engine/apicall/executor.go) or to the GlobalContextEntry external-API path, which handle every non-CEL context[].apiCall.service call. Because these paths use a plain net/http client with no egress filtering and no validation of the configured service URL, a ClusterPolicy or GlobalContextEntry author — or, where a deployed policy templates the service URL from the admission resource, a lower-privileged resource submitter — can cause Kyverno to issue GET/POST requests to an arbitrary host, including the cloud metadata endpoint, loopback, and any in-cluster service, reading cloud instance credentials and reaching internal endpoints with Kyverno's network position. The executor also unconditionally attaches Kyverno's projected ServiceAccount token to the attacker-chosen destination; the token is audience-scoped, limiting its replay value. Fixed in 1.19.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-26 23:10 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
2026-09-10 00:00
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CVE-2026-100704 (GCVE-0-2026-100704)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-09-26 13:23
VLAI
EPSS
VEX
Title
Kyverno before 1.19.1 ImageValidatingPolicy Exception Bypass
Summary
Kyverno is a policy engine for Kubernetes. In versions 1.14.0 through 1.19.0, the ImageValidatingPolicy (policies.kyverno.io/v1beta1) evaluator never reads the spec.images and spec.allowedValues fields of a PolicyException. Any PolicyException whose policyRefs and matchConditions match a resource causes image signature verification to be skipped for the entire resource rather than only for the listed images or values, so an exception intended to exempt a single trusted image exempts every image on the matched resource(s). As a result, unsigned or untrusted images can be admitted to the cluster without signature verification. This differs from ValidatingPolicy, GeneratingPolicy, and MutatingPolicy, which treat the same field as a partial exemption. The issue is fixed in version 1.19.1.
Severity
CWE
- CWE-863 - Incorrect Authorization
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
2026-09-10 00:00
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CVE-2026-100703 (GCVE-0-2026-100703)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-09-26 13:23
VLAI
EPSS
VEX
Title
Kyverno before 1.19.1 Cross-Namespace Data Access via globalcontext.Lib
Summary
Kyverno 1.16.0 through 1.19.0 registers the globalcontext.Lib CEL library in its policy environment without confining it to the policy's namespace, unlike the sibling libraries (resource.Lib, http.Lib, configMap loader) which are handed the policy namespace. A tenant who can create a namespaced policy (e.g. NamespacedValidatingPolicy, and likewise the namespaced mutating, deleting, generating, and image-validating policy kinds) in their own namespace can call globalContext.get("<entry>", "") and receive the full cached contents of a cluster-scoped GlobalContextEntry, including data cached from namespaces the tenant has no RBAC permission to read. No admission validation rejects such calls. Fixed in 1.19.1.
Severity
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
2026-09-10 00:00
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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
| 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 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
| 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 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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}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-617",
"description": "CWE-617: Reachable Assertion",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-24T03:27:08.865Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/kyverno/kyverno/security/advisories/GHSA-fpjq-c37h-cqcv",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/kyverno/kyverno/security/advisories/GHSA-fpjq-c37h-cqcv"
},
{
"name": "https://github.com/kyverno/kyverno/commit/76c8fdbe87328722e099e1fd44c3f21c9f7809cb",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/kyverno/kyverno/commit/76c8fdbe87328722e099e1fd44c3f21c9f7809cb"
},
{
"name": "https://github.com/kyverno/kyverno/commit/80e728c2283a0c65e5adb02d8a907106e6ebe7e3",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/kyverno/kyverno/commit/80e728c2283a0c65e5adb02d8a907106e6ebe7e3"
}
],
"source": {
"advisory": "GHSA-fpjq-c37h-cqcv",
"discovery": "UNKNOWN"
},
"title": "Kyverno Controller Denial of Service via forEach Mutation Panic"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-41485",
"datePublished": "2026-04-24T03:27:08.865Z",
"dateReserved": "2026-04-20T16:14:19.007Z",
"dateUpdated": "2026-04-24T18:53:26.871Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}