Vulnerability-Lookup

GHSA-MF33-GV72-W2H5

Vulnerability from github – Published: 2026-05-18 17:50 – Updated: 2026-05-18 17:50

Summary

CloakBrowser: Unauthenticated path traversal via fingerprint parameter in cloakserve leads to arbitrary directory deletion

Details

The cloakserve CDP multiplexer uses the user-supplied fingerprint query parameter directly as a filesystem path component when creating Chrome profile directories. An unauthenticated attacker who can reach the cloakserve port can supply a crafted fingerprint value containing path traversal sequences to resolve user_data_dir outside the configured data_dir. When Chrome fails to start or the process is cleaned up, shutil.rmtree() deletes the traversed path, resulting in arbitrary directory deletion.

Additionally, cloakserve bound to 0.0.0.0 by default, making it network-exposed.

Impact

An attacker with network access to the cloakserve port can delete arbitrary directories accessible to the service user.

Patches

Fixed in v0.3.28.

Mitigations

Upgrade to v0.3.28 or later
Restrict network access to the cloakserve port

Severity

8.8 (High)


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

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.3.27"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "cloakbrowser"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.3.28"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-45727"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-18T17:50:21Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "The `cloakserve` CDP multiplexer uses the user-supplied `fingerprint` query parameter directly as a filesystem path component when creating Chrome profile directories. An unauthenticated attacker who can reach the cloakserve port can supply a crafted `fingerprint` value containing path traversal sequences to resolve `user_data_dir` outside the configured `data_dir`. When Chrome fails to start or the process is cleaned up, `shutil.rmtree()` deletes the traversed path, resulting in arbitrary directory deletion.\n\nAdditionally, `cloakserve` bound to `0.0.0.0` by default, making it network-exposed.\n\n### Impact\n\nAn attacker with network access to the cloakserve port can delete arbitrary directories accessible to the service user.\n\n### Patches\n\nFixed in v0.3.28.\n\n### Mitigations\n\n- Upgrade to v0.3.28 or later\n- Restrict network access to the cloakserve port",
  "id": "GHSA-mf33-gv72-w2h5",
  "modified": "2026-05-18T17:50:21Z",
  "published": "2026-05-18T17:50:21Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/CloakHQ/CloakBrowser/security/advisories/GHSA-mf33-gv72-w2h5"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/CloakHQ/CloakBrowser"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "CloakBrowser: Unauthenticated path traversal via fingerprint parameter in cloakserve leads to arbitrary directory deletion"
}

CVE-2026-45727 (GCVE-0-2026-45727)

Vulnerability from cvelistv5 – Published: 2026-06-01 17:23 – Updated: 2026-06-01 21:39

Title

CloakBrowser: Unauthenticated path traversal via fingerprint parameter in cloakserve leads to arbitrary directory deletion

Summary

CloakBrowser is a tool to bypass bot detection tests. Prior to version 0.3.28, the cloakserve CDP multiplexer uses the user-supplied fingerprint query parameter directly as a filesystem path component when creating Chrome profile directories. An unauthenticated attacker who can reach the cloakserve port can supply a crafted fingerprint value containing path traversal sequences to resolve user_data_dir outside the configured data_dir. When Chrome fails to start or the process is cleaned up, shutil.rmtree() deletes the traversed path, resulting in arbitrary directory deletion. Additionally, cloakserve bound to 0.0.0.0 by default, making it network-exposed. This issue has been patched in version 0.3.28.

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/CloakHQ/CloakBrowser/security/…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
CloakHQ	CloakBrowser	Affected: < 0.3.28

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-45727",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-01T21:39:38.323702Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-01T21:39:48.256Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "CloakBrowser",
          "vendor": "CloakHQ",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.3.28"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "CloakBrowser is a tool to bypass bot detection tests. Prior to version 0.3.28, the cloakserve CDP multiplexer uses the user-supplied fingerprint query parameter directly as a filesystem path component when creating Chrome profile directories. An unauthenticated attacker who can reach the cloakserve port can supply a crafted fingerprint value containing path traversal sequences to resolve user_data_dir outside the configured data_dir. When Chrome fails to start or the process is cleaned up, shutil.rmtree() deletes the traversed path, resulting in arbitrary directory deletion. Additionally, cloakserve bound to 0.0.0.0 by default, making it network-exposed. This issue has been patched in version 0.3.28."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-01T17:23:50.130Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/CloakHQ/CloakBrowser/security/advisories/GHSA-mf33-gv72-w2h5",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/CloakHQ/CloakBrowser/security/advisories/GHSA-mf33-gv72-w2h5"
        }
      ],
      "source": {
        "advisory": "GHSA-mf33-gv72-w2h5",
        "discovery": "UNKNOWN"
      },
      "title": "CloakBrowser: Unauthenticated path traversal via fingerprint parameter in cloakserve leads to arbitrary directory deletion"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-45727",
    "datePublished": "2026-06-01T17:23:50.130Z",
    "dateReserved": "2026-05-13T05:51:48.667Z",
    "dateUpdated": "2026-06-01T21:39:48.256Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "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.

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