Vulnerability-Lookup

GHSA-8H76-QW8H-FMJH

Vulnerability from github – Published: 2026-06-01 21:30 – Updated: 2026-06-01 21:30

Details

Input validation bypass in SMB volume mount handling in CloudFoundry Foundation diego-release allows low-privileged CF space developer to inject arbitrary kernel CIFS mount options via bypassing the mount-option allowlist, enabling privilege escalation and security control bypass on multi-tenant Diego cells.

Affected versions: smb-volume-release: All versions prior to v3.60.0 CF Deployment: All versions prior to v56.0.0

Severity

8.1 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-41013"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-88"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-01T19:16:39Z",
    "severity": "HIGH"
  },
  "details": "Input validation bypass in SMB volume mount handling in CloudFoundry Foundation diego-release allows low-privileged CF space developer to inject arbitrary kernel CIFS mount options via bypassing the mount-option allowlist, enabling privilege escalation and security control bypass on multi-tenant Diego cells.\n\nAffected versions:\nsmb-volume-release: All versions prior to v3.60.0\nCF Deployment: All versions prior to v56.0.0",
  "id": "GHSA-8h76-qw8h-fmjh",
  "modified": "2026-06-01T21:30:42Z",
  "published": "2026-06-01T21:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41013"
    },
    {
      "type": "WEB",
      "url": "https://www.cloudfoundry.org/blog/cve-2026-41013-tenant-controlled-comma-smuggles-arbitrary-cifs-mount-options"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-41013 (GCVE-0-2026-41013)

Vulnerability from cvelistv5 – Published: 2026-06-01 17:36 – Updated: 2026-06-04 17:36

Title

Tenant-controlled comma smuggles arbitrary CIFS mount options

Summary

Severity

8.1 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-88 - Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

Assigner

vmware

References

1 reference

URL	Tags
https://www.cloudfoundry.org/blog/cve-2026-41013-…

Impacted products

2 products

Vendor	Product	Version
CloudFoundry Foundation	smb-volume-release	Affected: 0 , < 3.60.0 (custom)
CloudFoundry Foundation	CF Deployment	Affected: 0 , < 56.0.0 (custom)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 8.1,
              "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:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-41013",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-01T19:40:11.457381Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-01T19:40:16.203Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "smb-volume-release",
          "vendor": "CloudFoundry Foundation",
          "versions": [
            {
              "lessThan": "3.60.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "CF Deployment",
          "vendor": "CloudFoundry Foundation",
          "versions": [
            {
              "lessThan": "56.0.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
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        }
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          "supportingMedia": [
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            }
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          "value": "Input validation bypass in SMB volume mount handling in CloudFoundry Foundation diego-release allows low-privileged CF space developer to inject arbitrary kernel CIFS mount options via bypassing the mount-option allowlist, enabling privilege escalation and security control bypass on multi-tenant Diego cells.\n\nAffected versions:\nsmb-volume-release: All versions prior to v3.60.0\nCF Deployment: All versions prior to v56.0.0"
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en",
              "value": "A low-privileged CF space developer can bypass the SMB mount-option allowlist by injecting arbitrary kernel CIFS mount options via comma-delimited parameters, enabling privilege escalation and security control bypass on multi-tenant Diego cells."
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-88",
              "description": "CWE-88 Improper Neutralization of Argument Delimiters in a Command (\u0027Argument Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
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      "providerMetadata": {
        "dateUpdated": "2026-06-04T17:36:02.891Z",
        "orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d",
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      },
      "references": [
        {
          "url": "https://www.cloudfoundry.org/blog/cve-2026-41013-tenant-controlled-comma-smuggles-arbitrary-cifs-mount-options/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Tenant-controlled comma smuggles arbitrary CIFS mount options",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d",
    "assignerShortName": "vmware",
    "cveId": "CVE-2026-41013",
    "datePublished": "2026-06-01T17:36:47.643Z",
    "dateReserved": "2026-04-16T02:19:16.427Z",
    "dateUpdated": "2026-06-04T17:36:02.891Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-8H76-QW8H-FMJH

CVE-2026-41013 (GCVE-0-2026-41013)

Tags

Sightings

Nomenclature