Vulnerability-Lookup

CVE-2026-41052 (GCVE-0-2026-41052)

Vulnerability from cvelistv5 – Published: 2026-06-29 15:41 – Updated: 2026-06-30 03:55

Title

Rancher Privilege Escalation from Project Owner to Host

Summary

Improper privilege handling could be used by users with Project Owner role to escalate privileges, in Rancher versions 2.14 before 2.14.2, 2.13 before 2.13.6, and 2.12 before 2.12.10.

Severity

9.4 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-29 00:00 UTC

CWE

CWE-305 - Authentication bypass by primary weakness

Assigner

suse CNA under the mitre root

CNA scorecard B 80/100 over 118 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/rancher/rancher/security/advis…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
SUSE	Rancher	Affected: 2.12.0 , < 2.12.10 (semver) Affected: 2.13.0 , < 2.13.6 (semver) Affected: 2.14.0 , < 2.14.2 (semver)	guessed

Date Public

2026-05-28 11:14

Credits

Radtke Benedikt <Radtke@iabg.de> - github.com/Trolldemorted and Munier Marc <Munier@iabg.de> - github.com/mmunier

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-41052

Vulnerability from fkie_nvd - Published: 2026-06-29 16:16 - Updated: 2026-10-25 21:10

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

Improper privilege handling could be used by users with Project Owner role to escalate privileges, in Rancher versions 2.14 before 2.14.2, 2.13 before 2.13.6, and 2.12 before 2.12.10.

References

	URL	Tags
	meissner@suse.de	https://github.com/rancher/rancher/security/advisories/GHSA-vx8h-4prv-g744	Patch, Vendor Advisory

Impacted products

Vendor	Product	Version
suse	rancher	*
suse	rancher	*
suse	rancher	*

JSON

To clipboard

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    {
      "lang": "es",
      "value": "El manejo inadecuado de privilegios podr\u00eda ser utilizado por usuarios con el rol de Propietario de Proyecto para escalar privilegios, en las versiones de Rancher 2.14 anteriores a 2.14.2, 2.13 anteriores a 2.13.6, y 2.12 anteriores a 2.12.10."
    }
  ],
  "id": "CVE-2026-41052",
  "lastModified": "2026-10-25T21:10:00.770",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.4,
          "baseSeverity": "CRITICAL",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "HIGH",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "meissner@suse.de",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-41052",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-29T00:00:00+00:00",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-29T16:16:39.870",
  "references": [
    {
      "source": "meissner@suse.de",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/rancher/rancher/security/advisories/GHSA-vx8h-4prv-g744"
    }
  ],
  "sourceIdentifier": "meissner@suse.de",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-305"
        }
      ],
      "source": "meissner@suse.de",
      "type": "Secondary"
    }
  ]
}

GHSA-VX8H-4PRV-G744

Vulnerability from github – Published: 2026-07-01 20:57 – Updated: 2026-07-01 20:57

Summary

Rancher has Privilege Escalation from Project Owner to Host

Details

Impact

A vulnerability has been identified in Rancher Manager that allows users assigned the Project Owner role to modify Pod Security Admission (PSA) labels on namespaces within their projects. Under the default role configuration, an attacker with the following access pattern can exploit this issue: 1. Cluster Access: The user is granted Cluster Member access. 2. Project Ownership: The user creates or is assigned ownership of a project. 3. Namespace Creation: The user creates a namespace within that project. 4. PSA Modification: The user modifies the namespace PSA configuration to use the privileged profile. 5. Privilege Escalation: The user deploys privileged workloads within the namespace.

As outlined in the Kubernetes Pod Security Standards documentation, privileged containers disable core Kubernetes security protections, allowing workloads to bypass standard container isolation boundaries. This can result in privilege escalation within the cluster environment.

Potential impacts include: - Deployment of privileged containers - Access to host-level resources - Container breakout - Cluster privilege escalation - Compromise of workloads running on affected nodes

Please refer to the associated MITRE ATT&CK techniques for further information about this category of attack: - Deploy Container - Escape to Host - Exploitation for Privilege Escalation

Reference: Kubernetes Pod Security Standards — Privileged Profile

Patches

This vulnerability is resolved by modifying the project-owner role to explicitly define the allowed verbs for projects resources instead of using the wildcard (*) permission.

The updated role configuration removes access to the updatepsa verb. This prevents project owners from modifying PSA settings in a manner that could enable privilege escalation.

Patched versions of Rancher include releases v2.12.10, v2.13.6, and v2.14.2.

Workarounds

If upgrading is not immediately possible, administrators should create a custom project role based on the existing Project Owner role, while removing unrestricted wildcard permissions for project resources.

The allowed verbs for projects should be restricted to: “get, update, delete, patch, create, list, watch, deletecollection” instead of “*”.

This prevents access to the updatepsa capability that enables the privilege escalation path.

References

If you have any questions or comments about this advisory: - Reach out to the SUSE Rancher Security team for security related inquiries. - Open an issue in the Rancher repository. - Verify with our support matrix and product support lifecycle.

Severity

8.4 (High)


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

9.4 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rancher/rancher"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.14.0"
            },
            {
              "fixed": "2.14.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rancher/rancher"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.13.0"
            },
            {
              "fixed": "2.13.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rancher/rancher"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.12.0"
            },
            {
              "fixed": "2.12.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rancher/rancher"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.0.0-20260513182521-2800aaac25b5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-41052"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-305"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-01T20:57:49Z",
    "nvd_published_at": "2026-06-29T16:16:39Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\n\nA vulnerability has been identified in Rancher Manager that allows users assigned the Project Owner role to modify Pod Security Admission (PSA) labels on namespaces within their projects. Under the default role configuration, an attacker with the following access pattern can exploit this issue:\n1. **Cluster Access:** The user is granted Cluster Member access.\n2. **Project Ownership:** The user creates or is assigned ownership of a project.\n3. **Namespace Creation:** The user creates a namespace within that project.\n4. **PSA Modification:** The user modifies the namespace PSA configuration to use the privileged profile.\n5. **Privilege Escalation:** The user deploys privileged workloads within the namespace.\n\nAs outlined in the [Kubernetes Pod Security Standards](https://kubernetes.io/docs/concepts/security/pod-security-standards/) documentation, `privileged` containers disable core Kubernetes security protections, allowing workloads to bypass standard container isolation boundaries. This can result in privilege escalation within the cluster environment.\n\nPotential impacts include:\n- Deployment of privileged containers\n- Access to host-level resources\n- Container breakout\n- Cluster privilege escalation\n- Compromise of workloads running on affected nodes\n\nPlease refer to the associated MITRE ATT\u0026CK techniques for further information about this category of attack:\n- [Deploy Container](https://attack.mitre.org/techniques/T1610/)\n- [Escape to Host](https://attack.mitre.org/techniques/T1611/)\n- [Exploitation for Privilege Escalation](https://attack.mitre.org/techniques/T1068)\n\nReference:\n[Kubernetes Pod Security Standards \u2014 Privileged Profile](https://kubernetes.io/docs/concepts/security/pod-security-standards/#privileged)\n\n### Patches\nThis vulnerability is resolved by modifying the `project-owner` role to explicitly define the allowed verbs for `projects` resources instead of using the wildcard `(*)` permission.\n\nThe updated role configuration removes access to the `updatepsa` verb. This prevents project owners from modifying PSA settings in a manner that could enable privilege escalation.\n\nPatched versions of Rancher include releases `v2.12.10`, `v2.13.6`, and `v2.14.2`.\n\n### Workarounds\nIf upgrading is not immediately possible, administrators should create a custom project role based on the existing Project Owner role, while removing unrestricted wildcard permissions for project resources.\n\nThe allowed verbs for projects should be restricted to: \u201c`get`, `update`, `delete`, `patch`, `create`, `list`, `watch`, `deletecollection`\u201d instead of \u201c`*`\u201d.\n\nThis prevents access to the `updatepsa` capability that enables the privilege escalation path.\n\n### References\nIf you have any questions or comments about this advisory:\n- Reach out to the [SUSE Rancher Security team](https://github.com/rancher/rancher/security/policy) for security related inquiries.\n- Open an issue in the [Rancher](https://github.com/rancher/rancher/issues/new/choose) repository.\n- Verify with our [support matrix](https://www.suse.com/suse-rancher/support-matrix/all-supported-versions/) and [product support lifecycle](https://www.suse.com/lifecycle/).",
  "id": "GHSA-vx8h-4prv-g744",
  "modified": "2026-07-01T20:57:49Z",
  "published": "2026-07-01T20:57:49Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/rancher/rancher/security/advisories/GHSA-vx8h-4prv-g744"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41052"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rancher/rancher/pull/55061"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rancher/rancher/commit/2800aaac25b5a2c448f800e1f46d"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rancher/rancher"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Rancher has Privilege Escalation from Project Owner to Host"
}

WID-SEC-W-2026-1716

Vulnerability from csaf_certbund - Published: 2026-05-27 22:00 - Updated: 2026-05-27 22:00

Summary

Rancher: Mehrere Schwachstellen

Severity

Hoch

Scope

3 vulnerabilities in this advisory, including CVE-2026-41052.

CVE-2026-41052

Known affected: 5 products

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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-2026-41052 (GCVE-0-2026-41052)

FKIE_CVE-2026-41052

GHSA-VX8H-4PRV-G744

Impact

Patches

Workarounds

References

WID-SEC-W-2026-1716

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour