Vulnerability-Lookup

GHSA-X82V-328R-GF3H

Vulnerability from github – Published: 2026-06-22 15:30 – Updated: 2026-09-01 03:31

Details

A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. The WICD CSR auto-approver validates that a Certificate Signing Request contains the organization system:wicd-nodes but does not reject additional organization values such as system:masters. A compromised Windows worker node that holds WICD credentials can submit a CSR that is auto-approved and signed by the cluster, yielding a client certificate that grants cluster-administrator privileges and enabling full cluster takeover.

Severity

8.8 (High)


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

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  "affected": [],
  "aliases": [
    "CVE-2026-54099"
  ],
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      "CWE-269"
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    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-22T14:17:40Z",
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  "id": "GHSA-x82v-328r-gf3h",
  "modified": "2026-09-01T03:31:03Z",
  "published": "2026-06-22T15:30:43Z",
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CVE-2026-54099 (GCVE-0-2026-54099)

Vulnerability from cvelistv5 – Published: 2026-06-22 12:46 – Updated: 2026-09-09 12:05

Title

Windows-machine-config-operator: windows-machine-config-operator: wicd csr extra-organization allows privilege escalation to system:masters

Summary

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-22 00:00 UTC

CWE

CWE-269 - Improper Privilege Management

Assigner

redhat redhat root

References

5 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:47173	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:61780	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-54099	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2487950	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex

Impacted products

3 products

Vendor	Product	Version
Red Hat	Red Hat OpenShift for Windows Containers 10.21	Unaffected: 1787065708 , < * (rpm) cpe:/a:redhat:windows_machine_config:10.21::el9
Red Hat	Red Hat OpenShift for Windows Containers 10.22	Unaffected: 1783692800 , < * (rpm) cpe:/a:redhat:windows_machine_config:10.22::el9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-06-10 00:00

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.