CVE-2025-5187VulnerabilityPublished 17 Sep 2025Updated 7 Sep 2026

Red Hat Bug Fix Advisory: OpenShift Container Platform 4.18.24 bug fix update

Affects Red HatSource GCVE Database

Not known to be exploited : upgrade to 4.19.12 or 4.18.24 when convenient.

Data as of 25 Oct 2026, 19:02 UTC

Severity

Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 4.19.12, 4.18.24

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Sep 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Red Hat to 4.19.12 or 4.18.24.

Affected software

Product	Affected	Fixed in
Red Hat Product Security Red Hat	Affected >=4.18 <4.18.24 >=4.19 <4.19.12 Red Hat Red Hat OpenShift Container Platform Red Hat OpenShift Container Platform 4.18 amd64 registry.redhat.io/openshift4/ose-cluster-autoscaler-rhel9@sha256:4e569a0a89e56a35f7d246f3ecd2a23b6cb9ab2f12c6b8c40a61b709aab3b3fb_amd64 Red Hat OpenShift Container Platform 4.19 registry.redhat.io/openshift4/ose-cluster-autoscaler-rhel9@sha256:d382145c7057123e9c6d0f4f6fc537da3ec72b40983c5fb6fd2fabf12fba385d_amd64 arm64 registry.redhat.io/openshift4/ose-deployer-rhel9@sha256:0c89f8ecb76b55c4cbcd10e3ce1b8d5be78eb0791f3b2f724da1866431246a9f_arm64	Fixed in 4.18.24 4.19.12

AI-suggested

Upgrade to Red Hat OpenShift Container Platform versions 4.18.24 or 4.19.12 or later, which include fixes for this vulnerability. Additionally, enable the OwnerReferencesPermissionEnforcement admission controller to prevent users without delete permissions from modifying OwnerReferences on objects. Follow Red Hat's official upgrade and configuration guidance to fully apply these updates and mitigations.

Description

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.19.12. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2025:15692 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html/release_notes/

Impact

An attacker with high privileges capable of creating nodes can delete and recreate their node object with altered taints or labels. This may allow the attacker to control pod scheduling on the compromised node, potentially affecting workload placement and cluster behavior. The vulnerability has a medium severity rating and does not require user interaction. There are no known exploits in the wild.

Summary

CVE-2025-5187 is a vulnerability in the kube-apiserver's NodeRestriction admission controller within Red Hat OpenShift Container Platform. It allows node users with sufficient privileges to delete their corresponding node object by setting their own OwnerReference to a cluster-scoped resource. This flaw enables an attacker to delete and recreate the node object with modified taints or labels, which should not be permitted. The vulnerability requires the attacker to have a high privileged account with node creation permissions. The issue is addressed by enabling the OwnerReferencesPermissionEnforcement admission controller, which restricts modification of OwnerReferences to users with delete permissions on the object. The fix is included in OpenShift Container Platform versions 4.18.24 and 4.19.12.

CWE-306Missing Authentication for Critical Function (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #21OWASP Top 10 A07:2025: Authentication Failures (opens in a new tab)
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
Architecture and Design
Divide the software into anonymous, normal, privileged, and administrative areas. Identify which of these areas require a proven user identity, and use a centralized authentication capability.
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks…
Architecture and Design
Where possible, avoid implementing custom, "grow-your-own" authentication routines and consider using authentication capabilities as provided by the surrounding framework, operating system, or environment.
OWASP Cheat Sheets
OWASP Authentication (opens in a new tab)
OWASP ASVS 4.0.3
V1.2.3 (opens in a new tab)
V1.2.2 (opens in a new tab)
V1.2.4 (opens in a new tab)
Attack patterns
Choosing Message Identifier (opens in a new tab)
Force the System to Reset Values (opens in a new tab)
Using Unpublished Interfaces or Functionality (opens in a new tab)
Cross Site Request Forgery (opens in a new tab)
Communication Channel Manipulation (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 16 Aug 2026, 17:18 UTC

WeaknessesCWE-306

Technical details

References

Community reviews

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