8.8

CVE-2022-3294: kubernetes Improper Input Validation

CVSS: 8.8v3.1HighModified
AliasesRHBA-2023:0452UBUNTU-CVE-2022-3294DEBIAN-CVE-2022-3294
Published 01-03-2023Last modified 07-03-2025
Open JSON

Vulnerability summary

CVE-2022-3294 is a high (CVSS 8.8) Improper Input Validation vulnerability in kubernetes. EPSS estimates a 1.62% chance of exploitation in the next 30 days, higher than 75.7% of scored vulnerabilities.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
1.62%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
OPENSUSE-SU-2024:12810-1OPENSUSE-SU-2025:15424-1SUSE-SU-2023:2292-1

Timeline

  1. 01-03-2023
    PublishedVulnerability first disclosed.
  2. 07-03-2025
    Last modifiedVulnerability information updated.

Description

Users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can modify Node objects and send proxy requests to them. Kubernetes supports node proxying, which allows clients of kube-apiserver to access endpoints of a Kubelet to establish connections to Pods, retrieve container logs, and more. While Kubernetes already validates the proxying address for Nodes, a bug in kube-apiserver made it possible to bypass this validation. Bypassing this validation could allow authenticated requests destined for Nodes to to the API server's private network.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

1.62%

Chance of exploitation in the next 30 days

Percentile

76%

Versus all other CVEs

30-day change

0.00 pp

From 1.62% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.62%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • kubernetes< 1.20.5+really1.20.2-1
Github.com/kubernetes1 product
  • kubernetes≥ 1.25.0, < 1.25.4 | ≥ 1.24.0, < 1.24.8 | ≥ 1.23.0, < 1.23.14 | ≥ 1.22.0, < 1.22.16
K8s.io1 product
  • kubernetes≥ 1.25.0, < 1.25.4
Kubernetes1 product
  • kubernetes≥ unspecified, ≤ v1.25.3 | ≥ unspecified, ≤ v1.24.7 | ≥ unspecified, ≤ v1.23.13 | ≥ unspecified, ≤ v1.22.15 | < 1.22.16 | ≥ 1.23.0, < 1.23.14 | ≥ 1.24.0, < 1.24.8 | ≥ 1.25.0, < 1.25.4
Redhat1 product
  • microshift< 0:4.12.1-202301261525.p0.g3db9e81.assembly.4.12.1.el8
Ubuntu1 product
  • kubernetesAll versions (No fix recorded)

6 vendors · 6 products

References

17 links
Show all 17 references