Vulnerability-Lookup

CVE-2026-73269 (GCVE-0-2026-73269)

Vulnerability from cvelistv5 – Published: 2026-08-12 19:05 – Updated: 2026-09-08 12:15

Title

Cluster-curator-controller: cluster-curator-controller: tenant-controllable trigger creates clusterrolebinding granting cluster-wide secrets access to namespace-local sa

Summary

A flaw was found in the cluster-curator-controller component. A local user, by creating a ClusterCurator resource with a specific naming convention, can trigger the creation of a cluster-scoped ClusterRoleBinding. This allows the user to escalate their privileges from namespace-local access to cluster-wide control. This privilege escalation grants broad permissions, including the ability to access and manipulate secrets, manage cluster actions, and delete hosted clusters or node pools.

Severity

9.9 (Critical)


                        
                          CVSS:3.1/AV:N/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 2026-08-12 20:47 UTC

CWE

CWE-269 - Improper Privilege Management

Assigner

redhat redhat root

References

8 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:59556	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59557	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59558	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59559	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59579	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59593	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-73269	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2514220	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
Red Hat	multicluster engine for Kubernetes 2.1	Unaffected: 1787201612 , < * (rpm) cpe:/a:redhat:multicluster_engine:2.10::el9
Red Hat	multicluster engine for Kubernetes 2.11	Unaffected: 1787238383 , < * (rpm) cpe:/a:redhat:multicluster_engine:2.11::el9
Red Hat	multicluster engine for Kubernetes 2.17	Unaffected: 1786750700 , < * (rpm) cpe:/a:redhat:multicluster_engine:2.17::el9
Red Hat	multicluster engine for Kubernetes 2.6	Unaffected: 1787264185 , < * (rpm) cpe:/a:redhat:multicluster_engine:2.6::el9
Red Hat	multicluster engine for Kubernetes 2.8	Unaffected: 1787259011 , < * (rpm) cpe:/a:redhat:multicluster_engine:2.8::el9
Red Hat	multicluster engine for Kubernetes 2.9	Unaffected: 1787201646 , < * (rpm) cpe:/a:redhat:multicluster_engine:2.9::el9

Date Public

2026-08-11 00:00

Show details on NVD website

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\"https://access.redhat.com/errata/RHSA-2026:59579\", \"name\": \"RHSA-2026:59579\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:59593\", \"name\": \"RHSA-2026:59593\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/security/cve/CVE-2026-73269\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2514220\", \"name\": \"RHBZ#2514220\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"To mitigate this issue, restrict the ability of tenants to create `ClusterCurator` resources. Implement Kubernetes Role-Based Access Control (RBAC) policies to limit `create` permissions for `clustercurators.cluster.open-cluster-management.io` resources to only trusted administrators or service accounts. Alternatively, deploy an admission controller to enforce that `metadata.name` and `metadata.namespace` fields are identical when `ClusterCurator` resources are created, preventing the vulnerable condition.\"}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in the cluster-curator-controller component. A local user, by creating a ClusterCurator resource with a specific naming convention, can trigger the creation of a cluster-scoped ClusterRoleBinding. This allows the user to escalate their privileges from namespace-local access to cluster-wide control. This privilege escalation grants broad permissions, including the ability to access and manipulate secrets, manage cluster actions, and delete hosted clusters or node pools.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-269\", \"description\": \"Improper Privilege Management\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2026-09-08T12:15:38.866Z\"}, \"x_redhatCweChain\": \"CWE-269: Improper Privilege Management\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-73269\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-08T12:15:38.866Z\", \"dateReserved\": \"2026-08-11T17:22:38.645Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2026-08-12T19:05:05.235Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-73269

Vulnerability from fkie_nvd - Published: 2026-08-12 20:17 - Updated: 2026-09-08 13:17

Severity

9.9 (Critical) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Summary

References

	URL	Tags
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:59556
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:59557
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:59558
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:59559
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:59579
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:59593
	secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2026-73269
	secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2514220

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:multicluster_engine:2.10::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "multicluster-engine/cluster-curator-controller-rhel9",
          "product": "multicluster engine for Kubernetes 2.1",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1787201612",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:multicluster_engine:2.11::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "multicluster-engine/cluster-curator-controller-rhel9",
          "product": "multicluster engine for Kubernetes 2.11",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1787238383",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:multicluster_engine:2.17::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "multicluster-engine/cluster-curator-controller-rhel9",
          "product": "multicluster engine for Kubernetes 2.17",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1786750700",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:multicluster_engine:2.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "multicluster-engine/cluster-curator-controller-rhel9",
          "product": "multicluster engine for Kubernetes 2.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1787264185",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:multicluster_engine:2.8::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "multicluster-engine/cluster-curator-controller-rhel9",
          "product": "multicluster engine for Kubernetes 2.8",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1787259011",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:multicluster_engine:2.9::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "multicluster-engine/cluster-curator-controller-rhel9",
          "product": "multicluster engine for Kubernetes 2.9",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1787201646",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in the cluster-curator-controller component. A local user, by creating a ClusterCurator resource with a specific naming convention, can trigger the creation of a cluster-scoped ClusterRoleBinding. This allows the user to escalate their privileges from namespace-local access to cluster-wide control. This privilege escalation grants broad permissions, including the ability to access and manipulate secrets, manage cluster actions, and delete hosted clusters or node pools."
    }
  ],
  "id": "CVE-2026-73269",
  "lastModified": "2026-09-08T13:17:22.420",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.9,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 6.0,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-73269",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-12T20:47:02.826289Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-12T20:17:53.793",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:59556"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:59557"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:59558"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:59559"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:59579"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:59593"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2026-73269"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514220"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}

GHSA-H2W9-5QX3-FRQQ

Vulnerability from github – Published: 2026-08-12 21:31 – Updated: 2026-09-05 15:30

Details

Severity

9.9 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-73269"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-12T20:17:53Z",
    "severity": "CRITICAL"
  },
  "details": "A flaw was found in the cluster-curator-controller component. A local user, by creating a ClusterCurator resource with a specific naming convention, can trigger the creation of a cluster-scoped ClusterRoleBinding. This allows the user to escalate their privileges from namespace-local access to cluster-wide control. This privilege escalation grants broad permissions, including the ability to access and manipulate secrets, manage cluster actions, and delete hosted clusters or node pools.",
  "id": "GHSA-h2w9-5qx3-frqq",
  "modified": "2026-09-05T15:30:25Z",
  "published": "2026-08-12T21:31:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73269"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:59556"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:59557"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:59558"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:59559"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:59579"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:59593"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-73269"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514220"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

RHSA-2026:59556

Vulnerability from csaf_redhat - Published: 2026-08-25 18:37 - Updated: 2026-09-16 18:33

Summary

Red Hat Security Advisory: multicluster engine for Kubernetes v2.11.6 security update

Severity

Important

Scope

14 vulnerabilities in this advisory, including CVE-2026-73269.

CVE-2026-73269

9.9 (Critical)


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

Fixed: 4 products Known not affected: 124 products

https://access.redhat.com/errata/RHSA-2026:59556

Open the full advisory

RHSA-2026:59557

Vulnerability from csaf_redhat - Published: 2026-08-25 18:46 - Updated: 2026-09-16 18:33

Summary

Red Hat Security Advisory: multicluster engine for Kubernetes v2.10.6 security update

Severity

Important

Scope

14 vulnerabilities in this advisory, including CVE-2026-73269.

CVE-2026-73269

9.9 (Critical)


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

Fixed: 4 products Known not affected: 120 products

https://access.redhat.com/errata/RHSA-2026:59557

Open the full advisory

RHSA-2026:59558

Vulnerability from csaf_redhat - Published: 2026-08-25 18:48 - Updated: 2026-09-16 23:38

Summary

Red Hat Security Advisory: multicluster engine for Kubernetes v2.8.10 security update

Severity

Important

Scope

30 vulnerabilities in this advisory, including CVE-2026-73269.

CVE-2026-73269

9.9 (Critical)


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

Fixed: 4 products Known not affected: 104 products

https://access.redhat.com/errata/RHSA-2026:59558

Open the full advisory

RHSA-2026:59559

Vulnerability from csaf_redhat - Published: 2026-08-25 18:50 - Updated: 2026-09-16 23:38

Summary

Red Hat Security Advisory: multicluster engine for Kubernetes v2.9.7 security update

Severity

Important

Scope

31 vulnerabilities in this advisory, including CVE-2026-73269.

CVE-2026-73269

9.9 (Critical)


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

Fixed: 4 products Known not affected: 116 products

https://access.redhat.com/errata/RHSA-2026:59559

Open the full advisory

RHSA-2026:59579

Vulnerability from csaf_redhat - Published: 2026-08-25 19:37 - Updated: 2026-09-16 23:44

Summary

Red Hat Security Advisory: multicluster engine for Kubernetes v2.6.14 security update

Severity

Important

Scope

26 vulnerabilities in this advisory, including CVE-2026-73269.

CVE-2026-73269

9.9 (Critical)


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

Fixed: 4 products Known not affected: 104 products

https://access.redhat.com/errata/RHSA-2026:59579

Open the full advisory

RHSA-2026:59593

Vulnerability from csaf_redhat - Published: 2026-08-25 19:56 - Updated: 2026-09-16 23:44

Summary

Red Hat Security Advisory: multicluster engine for Kubernetes v2.17.2 security update

Severity

Important

Scope

25 vulnerabilities in this advisory, including CVE-2026-73269.

CVE-2026-73269

9.9 (Critical)


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

Fixed: 4 products Known not affected: 136 products

https://access.redhat.com/errata/RHSA-2026:59593

Open the full advisory

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.

Action not permitted

CVE-2026-73269 (GCVE-0-2026-73269)

Tags

Sightings

Nomenclature

Related by attack behaviour