CVE-2026-104615 (GCVE-0-2026-104615)

Vulnerability from cvelistv5 – Published: 2026-10-30 15:49 – Updated: 2026-10-30 15:49
VLAI
Title
Cluster identity takeover in Fleet cluster registration allows access to another cluster's Fleet namespace
Summary
A security vulnerability was discovered in SUSE Rancher Fleet's cluster registration flow, in Fleet versions before 0.12, 0.13.0 up to 0.13.17, 0.14.0 up to 0.14.12, 0.15.0 up t o 0.15.17 and 0.16.0 up to 0.16.3. The cluster identity claimed by a registration request was accepted without being bound to the registration token that the request was made with. As a result, a registration request could be associated with a managed cluster that was originally registered with a different registration token.
CWE
  • CWE-290 - Authentication bypass by spoofing
Assigner
suse CNA under the mitre root
CNA scorecard B 80/100 over 118 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
SUSE Rancher Affected: 0.16.0 , < 0.16.3 (semver)
Affected: 0.15.0. , < 0.15.17 (semver)
Affected: 0.14.0 , < 0.14.12 (semver)
Affected: 0.13 , < 0.13.17 (semver)
Affected: 0 , ≤ 0.12 (semver)
    cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*
    cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*
    cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*
    cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*
    cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-30 15:44
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "Fleett",
          "product": "Rancher",
          "repo": "https://github.com/rancher/fleet/",
          "vendor": "SUSE",
          "versions": [
            {
              "lessThan": "0.16.3",
              "status": "affected",
              "version": "0.16.0",
              "versionType": "semver"
            },
            {
              "lessThan": "0.15.17",
              "status": "affected",
              "version": "0.15.0.",
              "versionType": "semver"
            },
            {
              "lessThan": "0.14.12",
              "status": "affected",
              "version": "0.14.0",
              "versionType": "semver"
            },
            {
              "lessThan": "0.13.17",
              "status": "affected",
              "version": "0.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "0.12",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "0.16.3",
                  "versionStartIncluding": "0.16.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "0.15.17",
                  "versionStartIncluding": "0.15.0.",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "0.14.12",
                  "versionStartIncluding": "0.14.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "0.13.17",
                  "versionStartIncluding": "0.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "0.12",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "https://github.com/Pig-Tail"
        }
      ],
      "datePublic": "2026-10-30T15:44:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "A security vulnerability was discovered in SUSE Rancher Fleet\u0027s cluster registration flow, in Fleet versions before 0.12, 0.13.0 up to 0.13.17, 0.14.0 up to 0.14.12, 0.15.0 up t o 0.15.17 and 0.16.0 up to 0.16.3. The cluster identity claimed by a registration request was accepted without being bound to the registration token that the request was made with. As a result, a registration request could be associated with a managed cluster that was originally registered with a different registration token."
            }
          ],
          "value": "A security vulnerability was discovered in SUSE Rancher Fleet\u0027s cluster registration flow, in Fleet versions before 0.12, 0.13.0 up to 0.13.17, 0.14.0 up to 0.14.12, 0.15.0 up t o 0.15.17 and 0.16.0 up to 0.16.3. The cluster identity claimed by a registration request was accepted without being bound to the registration token that the request was made with. As a result, a registration request could be associated with a managed cluster that was originally registered with a different registration token."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-233",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-233 Privilege Escalation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.9,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-290",
              "description": "CWE-290 Authentication bypass by spoofing",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T15:49:01.402Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/rancher/fleet/security/advisories/GHSA-gx8v-2929-9q95"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Cluster identity takeover in Fleet cluster registration allows access to another cluster\u0027s Fleet namespace",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2026-104615",
    "datePublished": "2026-10-30T15:49:01.402Z",
    "dateReserved": "2026-10-02T04:18:56.078Z",
    "dateUpdated": "2026-10-30T15:49:01.402Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-104615",
      "date": "2026-10-31",
      "epss": "0.00221",
      "percentile": "0.12746"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "packageName": "Fleett",
                "product": "Rancher",
                "repo": "https://github.com/rancher/fleet/",
                "vendor": "SUSE",
                "versions": [
                  {
                    "lessThan": "0.16.3",
                    "status": "affected",
                    "version": "0.16.0",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "0.15.17",
                    "status": "affected",
                    "version": "0.15.0.",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "0.14.12",
                    "status": "affected",
                    "version": "0.14.0",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "0.13.17",
                    "status": "affected",
                    "version": "0.13",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "0.12",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "meissner@suse.de"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A security vulnerability was discovered in SUSE Rancher Fleet\u0027s cluster registration flow, in Fleet versions before 0.12, 0.13.0 up to 0.13.17, 0.14.0 up to 0.14.12, 0.15.0 up t o 0.15.17 and 0.16.0 up to 0.16.3. The cluster identity claimed by a registration request was accepted without being bound to the registration token that the request was made with. As a result, a registration request could be associated with a managed cluster that was originally registered with a different registration token."
          }
        ],
        "id": "CVE-2026-104615",
        "lastModified": "2026-10-30T17:44:35.820",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.9,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "LOW",
                "privilegesRequired": "HIGH",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.3,
              "impactScore": 6.0,
              "source": "meissner@suse.de",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-30T16:17:36.687",
        "references": [
          {
            "source": "meissner@suse.de",
            "url": "https://github.com/rancher/fleet/security/advisories/GHSA-gx8v-2929-9q95"
          }
        ],
        "sourceIdentifier": "meissner@suse.de",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-290"
              }
            ],
            "source": "meissner@suse.de",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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

JSON
Events included in the timeline

Loading timeline…


    Loading…

    Loading…

    Loading…

    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.