---
title: "Kubernetes ingress-nginx vulnerabilities and CVEs"
url: https://radicalnotion.ai/vendor/kubernetes/kubernetes-ingress-nginx
type: product
description: "Kubernetes ingress-nginx has 4 published CVEs, 0 in CISA KEV and 1 with public exploits."
updated: 2023-05-24
source: RadicalNotion.AI
license: CC BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/)
---

# Kubernetes ingress-nginx vulnerabilities

Vendor: [Kubernetes](https://radicalnotion.ai/vendor/kubernetes)

- **Published CVEs:** 4
- **In CISA KEV:** 0
- **With a public exploit:** 1
- **With a patch:** 4
- **Average CVSS:** 7.7
- **First CVE:** 2021-10-29
- **Latest CVE:** 2023-05-24

## Severity breakdown

| Severity | CVEs |
| --- | --- |
| Critical | 0 |
| High | 4 |
| Medium | 0 |
| Low | 0 |
| Unscored | 0 |

## Most common weakness types

| CWE | Name | CVEs |
| --- | --- | --- |
| [CWE-20](https://radicalnotion.ai/cwe/cwe-20) | Improper Input Validation | 4 |

## CVEs by year

| Year | CVEs published |
| --- | --- |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 1 |

## Affected versions

| Version | Kind | CVEs |
| --- | --- | --- |
| \< 1.2.0 | range | 2 |
| \< 1.2.1 | range | 1 |
| \<= 0.49.0 | range | 1 |
| \<= 1.0.0 | range | 1 |
| \>= next of 0.49.0 | range | 1 |
| \>= next of 1.0.0 | range | 1 |
| 1.2.0 | patched | 2 |
| 1.2.1 | patched | 1 |

## CVEs

| CVE | Title | Severity | CVSS | CISA KEV | Public exploit | Patch |
| --- | --- | --- | --- | --- | --- | --- |
| CVE-2021-25748 | Ingress-nginx \`path\` sanitization can be bypassed with newline character | high | 7.6 | No | No | Yes |
| CVE-2021-25746 | Ingress-nginx directive injection via annotations | high | 7.6 | No | No | Yes |
| CVE-2021-25745 | Ingress-nginx path can be pointed to service account token file | high | 8.1 | No | No | Yes |
| CVE-2021-25742 | Ingress-nginx custom snippets allows retrieval of ingress-nginx serviceaccount token and secrets across all namespaces | high | 7.6 | No | Yes | Yes |

## Frequently asked questions

### How many CVEs does Kubernetes ingress-nginx have?

Kubernetes ingress-nginx has 4 published CVE records since 2021.

### How many Kubernetes ingress-nginx CVEs are in CISA KEV?

None of Kubernetes ingress-nginx's CVEs are currently listed in CISA's Known Exploited Vulnerabilities catalog.

### Are there public exploits for Kubernetes ingress-nginx vulnerabilities?

Yes — 1 of Kubernetes ingress-nginx's CVEs have a known public exploit.

### Which versions of Kubernetes ingress-nginx are affected?

8 distinct Kubernetes ingress-nginx versions are named across its CVEs. Use the version filter above to see the CVEs affecting a specific version.

### What are the most common weakness types in Kubernetes ingress-nginx CVEs?

Kubernetes ingress-nginx's CVEs most often map to these CWE weakness types: CWE-20 (Improper Input Validation).

### What is the average severity of Kubernetes ingress-nginx CVEs?

The average CVSS base score across Kubernetes ingress-nginx's scored CVEs is 7.7.

## Other products from this vendor

- [Kubernetes](https://radicalnotion.ai/vendor/kubernetes/kubernetes) (78 CVEs)
- [ingress-nginx](https://radicalnotion.ai/vendor/kubernetes/ingress-nginx) (24 CVEs)
- [cri-o](https://radicalnotion.ai/vendor/kubernetes/cri-o) (10 CVEs)
- [github.com/kubernetes/kubernetes](https://radicalnotion.ai/vendor/kubernetes/github-com-kubernetes-kubernetes) (9 CVEs)
- [Kubelet](https://radicalnotion.ai/vendor/kubernetes/kubelet) (7 CVEs)
- [Image Builder](https://radicalnotion.ai/vendor/kubernetes/image-builder) (3 CVEs)
- [kube-apiserver](https://radicalnotion.ai/vendor/kubernetes/kube-apiserver) (3 CVEs)
- [Minikube](https://radicalnotion.ai/vendor/kubernetes/minikube) (3 CVEs)

---

Source: [RadicalNotion.AI](https://radicalnotion.ai/vendor/kubernetes/kubernetes-ingress-nginx). Licensed CC BY-NC 4.0; attribute RadicalNotion.AI and link the source page when you reuse this data.