How to fix CVE-2025-29778?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Is Kubernetes affected by CVE-2025-29778?

Organizations using Kyverno should be aware of moderate risk from CVE-2025-29778 rated CVSS 5.8. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. A patch is available and should be applied during regular vulnerability management.

CVE-2025-29778

MEDIUM

2025-03-24 [email protected]

5.8

CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:33 vuln.today

Patch Released

Mar 28, 2026 - 18:33 nvd

Patch available

PoC Detected

Aug 01, 2025 - 13:10 vuln.today

Public exploit code

CVE Published

Mar 24, 2025 - 17:15 nvd

MEDIUM 5.8

Description

Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to version 1.14.0-alpha.1, Kyverno ignores subjectRegExp and IssuerRegExp while verifying artifact's sign with keyless mode. It allows the attacker to deploy kubernetes resources with the artifacts that were signed by unexpected certificate. Deploying these unauthorized kubernetes resources can lead to full compromise of kubernetes cluster. Version 1.14.0-alpha.1 contains a patch for the issue.

Analysis

Kyverno is a policy engine designed for cloud native platform engineering teams. Rated medium severity (CVSS 5.8), this vulnerability is remotely exploitable. Public exploit code available.

Technical Context

This vulnerability is classified under CWE-285. Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to version 1.14.0-alpha.1, Kyverno ignores subjectRegExp and IssuerRegExp while verifying artifact's sign with keyless mode. It allows the attacker to deploy kubernetes resources with the artifacts that were signed by unexpected certificate. Deploying these unauthorized kubernetes resources can lead to full compromise of kubernetes cluster. Version 1.14.0-alpha.1 contains a patch for the issue. Affected products include: Kyverno. Version information: version 1.14.0.

Affected Products

Kyverno.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.1

CVSS: +29

POC: +20

Vendor Status

CVE-2025-29778 vulnerability details – vuln.today

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CVE-2025-29778

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CVE-2025-29778

CVSS Vector

Lifecycle Timeline

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Description

Analysis

Technical Context

Affected Products

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External POC / Exploit Code