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CVE-2023-3676

Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation

8.8 HighFix available

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

13.2%Up 13.1 points since Nov 1, 2023
90%50%10%1%

What each source reports

CVE List Score used 8.8

Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

Record
CVE-2023-3676
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
EUVDEUVD-2023-2686 8.8

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

Record
EUVD-2023-2686
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-7fxm-f474-hf8w 8.8

Kubernetes privilege escalation vulnerability

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

Record
GHSA-7fxm-f474-hf8w
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
NVD 8.8

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

Record
CVE-2023-3676
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
OSV 8.8

Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

Record
CVE-2023-3676
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
OSVDEBIAN-CVE-2023-3676 8.8

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

Record
DEBIAN-CVE-2023-3676
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 4 moreShow less
OSVGHSA-7fxm-f474-hf8w 8.8

Kubernetes privilege escalation vulnerability

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

Record
GHSA-7fxm-f474-hf8w
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
OSVUBUNTU-CVE-2023-3676 8.8

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

Record
UBUNTU-CVE-2023-3676
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGO-2023-2330 No score

Insufficient input sanitization on Windows nodes leads to privilege escalation in k8s.io/kubernetes

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

Record
GO-2023-2330
Updated
2026-11-02
OSVopenSUSE-SU-2024:14599-1 No score

govulncheck-vulndb-0.0.20241213T205935-1.1 on GA media

These are all security issues fixed in the govulncheck-vulndb-0.0.20241213T205935-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:14599-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
k8s.io/kubernetes
Go
 1.28.0 to 1.28.0
1.28.1
k8s.io/kubernetes
Go
 1.27.0 up to 1.27.5
1.27.5
k8s.io/kubernetes
Go
 1.26.0 up to 1.26.8
1.26.8
k8s.io/kubernetes
Go
 1.25.0 up to 1.25.13
1.25.13
k8s.io/kubernetes
Go
 before 1.24.17
1.24.17
kubernetes
Debian:12
 before 1.20.5+really1.20.2-1
1.20.5+really1.20.2-1
kubernetes
Debian:13
 before 1.20.5+really1.20.2-1
1.20.5+really1.20.2-1
kubernetes
Debian:14
 before 1.20.5+really1.20.2-1
1.20.5+really1.20.2-1
k8s.io/kubernetes
Go
 1.28.0 up to 1.28.1
1.28.1
k8s.io/kubernetes
Go
 before 1.24.17, 1.25.0 up to 1.25.13, 1.26.0 up to 1.26.8, 1.27.0 up to 1.27.5, 1.28.0 up to 1.28.1
1.24.171.25.131.26.81.27.51.28.1
govulncheck-vulndb
openSUSE:Tumbleweed
From an advisory covering 21 CVEs
 before 0.0.20241213T205935-1.1
0.0.20241213T205935-1.1

History

History
RecordedChangedSources
affected, facts
affected
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-3676 is a high vulnerability (CVSS 8.8) in Kubernetes, published October 31, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 13.2%, the 96th percentile. Fixed in k8s.io/kubernetes 1.28.1.

References

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