CVE-2021-25735

CVE-2021-25735 Exploit CVE-2021-25735: Kubernetes Validating Admission Webhook Bypass Set the Vulnerable Environment Let's start with running the script gencerts.sh to generate TLS certificates and keys. bash gencerts.sh To deploy the admission controller you need to build the Docker container...

CVE-2025-1974-poc

POC of IngressNightmare, RCE in Ingress NGINX CVE-2025-1974 Developed from: https://github.com/zwxxb/CVE-2025-1974/blob/main/poc.py https://www.wiz.io/blog/ingress-nginx-kubernetes-vulnerabilitieshow-did-we-discover-ingressnightmare-24 Thanks 使用说明 root@kitploit: forward the admission webhook...

ingressNightmare-CVE-2025-1974-exps

Ingress Nightmare CVE-2025-1907 描述 此漏洞允许远程攻击者在受影响的 kubernetes/ingress-nginx 安装环境上执行任意代码。利用此漏洞无需身份验证。具体缺陷存在于对 HTTP 请求的处理过程中。 该漏洞通过发送两个请求触发。第一个是发送到同一 Pod 中 NGINX 服务器的长缓冲请求，随后 nginx 会将其缓存为临时文件。第二个请求是发送到准入校验 Webhook 服务器的请求，这会触发准入 Webhook 写入一个包含 sslengine badsolocation; 指令的临时 nginx 配置。然后准入 Webhook 会运行...

CVE-2026-5556-Kubernetes-Admission-Controller-Bypass-via-Case-Sensitivity

CVE-2026-5556 – Bypass del controlador de admisión de Kubernetes mediante sensibilidad a mayúsculas y minúsculas Código del programa webhook de admisión en Python + exploit root@kitploit: !/usr/bin/env python3 admissionwebhook.py - Vulnerable webhook that rejects pods with specific name from flas...

CVE-2024-7598 affecting package kubernetes for versions less than 1.30.10-27

CVE-2024-7598 affecting package kubernetes for versions less than 1.30.10-27. A patched version of the package is available...

CVE-2026-42533 vulnerabilities

Vulnerabilities for packages: nginx-stable, ingress-nginx-controller, nginx-mainline...

Denial Of Service (DoS)

Capsule is vulnerable to Denial of Service DoS. The vulnerability is due to insufficient validation of the ForbiddenLabels.Regex and ForbiddenAnnotations.Regex fields in the configuration admission webhook, which allows an attacker with Cluster Administrator privileges to store a malformed regula...

GHSA-R2V3-8GWF-7GHM vault-addr annotation SSRF -- webhook makes outbound HTTP call to attacker URL during admission; vault-serviceaccount enables cluster-wide SA token theft via TokenRequest API

Summary The vault-secrets-webhook reads the vault.security.banzaicloud.io/vault-addr annotation from any ConfigMap or Secret being admitted and uses it as the Vault server address without any validation or allowlist. When a ConfigMap or Secret contains a value prefixed with vault:, the webhook's...

EUVD-2026-51295

Capsule: CapsuleConfiguration NodeMetadata regex fields lack webhook validation, allowing MustCompile panic on all Node admission requests...

CVE-2026-65834

Capsule is a multi-tenancy and policy-based framework for Kubernetes. Prior to 0.13.8, CapsuleConfiguration.Spec.NodeMetadata.ForbiddenLabels.Regex and CapsuleConfiguration.Spec.NodeMetadata.ForbiddenAnnotations.Regex were not validated by the configuration admission webhook, allowing a Cluster...

CVE-2026-65834 Capsule: CapsuleConfiguration NodeMetadata regex fields lack webhook validation, allowing MustCompile panic on all Node admission requests

Capsule is a multi-tenancy and policy-based framework for Kubernetes. Prior to 0.13.8, CapsuleConfiguration.Spec.NodeMetadata.ForbiddenLabels.Regex and CapsuleConfiguration.Spec.NodeMetadata.ForbiddenAnnotations.Regex were not validated by the configuration admission webhook, allowing a Cluster...

SUSE CVE-2026-49823

Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, a Fission Function spec carries three reference types - Secret, ConfigMap, and Package. The first two were namespace-validated by...

SUSE CVE-2026-49824

Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, the Fission Function admission webhook pkg/webhook/function.go validated that spec.secrets.namespace and spec.configmaps.namespace...

PT-2026-66596

Name of the Vulnerable Software and Affected Versions Capsule versions prior to 0.13.8 Description The configuration admission webhook fails to validate the CapsuleConfiguration.Spec.NodeMetadata.ForbiddenLabels.Regex and CapsuleConfiguration.Spec.NodeMetadata.ForbiddenAnnotations.Regex variables...

EUVD-2026-36074

Fission: Incomplete capability denylist in Environment/Function PodSpec validation allows tenant-added CAPSYSTIME and cross-tenant node wall-clock corruption...

GO-2026-6015 Skipper: Unbounded Request Body Read in Admission Webhook Causes Memory Exhaustion DoS in github.com/zalando/skipper

Skipper: Unbounded Request Body Read in Admission Webhook Causes Memory Exhaustion DoS in github.com/zalando/skipper...

Uncontrolled Resource Consumption

github.com/zalando/skipper is vulnerable to Uncontrolled Resource Consumption. The vulnerability is due to reading the entire admission webhook request body without enforcing a size limit, which allows an attacker to send excessively large payloads and exhaust memory, resulting in a...

Skipper: Unbounded Request Body Read in Admission Webhook Causes Memory Exhaustion DoS

Summary The Kubernetes admission webhook handler reads the entire request body using io.ReadAllr.Body without any size limit. Any client that can reach the webhook port within the cluster can send a multi-GB payload, causing the skipper process to exhaust memory and be OOM-killed. This disrupts a...

GHSA-CWXQ-RC9X-2JVV Skipper: Unbounded Request Body Read in Admission Webhook Causes Memory Exhaustion DoS

Summary The Kubernetes admission webhook handler reads the entire request body using io.ReadAllr.Body without any size limit. Any client that can reach the webhook port within the cluster can send a multi-GB payload, causing the skipper process to exhaust memory and be OOM-killed. This disrupts a...

PT-2026-60893

Name of the Vulnerable Software and Affected Versions Skipper affected versions not specified Description The Kubernetes admission webhook handler reads the entire request body without a size limit. An attacker with in-cluster network access and a valid Kubernetes client certificate can send a...