CVE-2022-3294Network attack vector

Authenticated private-network access via node proxy validation bypass

Published Mar 1, 2023 · Updated Mar 7, 2025

SSRF in Kubernetes kube-apiserver 1.25.3 and earlier allows remote authenticated users to access private control-plane endpoints via node proxying. The node registry ResourceLocation function returned the default kubelet transport before calling IsProxyableHostname, skipping rejection of localhost or link-local Node addresses. Exploitation requires permission to modify Node objects and use nodes/proxy, and exposed endpoints depend on network layout and egress-selector configuration.

CVSS severity6.6
Medium
EPSS probability1.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Kubernetes kube-apiserver 1.25.3 and earlier allows remote authenticated users to access private control-plane endpoints via node proxying. The node registry ResourceLocation function returned the default kubelet transport before calling IsProxyableHostname, skipping rejection of localhost or link-local Node addresses. Exploitation requires permission to modify Node objects and use nodes/proxy, and exposed endpoints depend on network layout and egress-selector configuration.

The record

CVE
CVE-2022-3294
Published
Mar 1, 2023
Updated
Mar 7, 2025
Vendor
Kubernetes
Product
Kubernetes
Classifications
CWE-20, T1090
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 1, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 7, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=v1.22.15
  2. Affected versionversion=unspecified <=v1.23.13
  3. Affected versionversion=unspecified <=v1.24.7
  4. Affected versionversion=unspecified <=v1.25.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Kubernetes · Kubernetesversion=unspecified <=v1.22.15; version=unspecified <=v1.23.13; version=unspecified <=v1.24.7; version=unspecified <=v1.25.3

Published CVSS scores

8.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.6Kubernetes Security Response CommitteeCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1090Proxy

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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