Vulnerability-Lookup

GHSA-Q47W-6JPV-Q372

Vulnerability from github – Published: 2026-11-03 18:31 – Updated: 2026-11-03 18:31

Details

Foxel through 2.4.0 contains a missing authentication vulnerability that allows unauthenticated attackers to read files by requesting the /api/fs/stream and /api/fs/thumb endpoints. Attackers can supply a VFS mount prefix and relative path to retrieve full file contents or thumbnails across all mounts, bypassing PathRule permission grants.

Severity

7.5 (High)


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

8.7 (High)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-121555"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-306"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-11-03T16:17:27Z",
    "severity": "HIGH"
  },
  "details": "Foxel through 2.4.0 contains a missing authentication vulnerability that allows unauthenticated attackers to read files by requesting the /api/fs/stream and /api/fs/thumb endpoints. Attackers can supply a VFS mount prefix and relative path to retrieve full file contents or thumbnails across all mounts, bypassing PathRule permission grants.",
  "id": "GHSA-q47w-6jpv-q372",
  "modified": "2026-11-03T18:31:05Z",
  "published": "2026-11-03T18:31:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-121555"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DrizzleTime/Foxel/issues/152"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DrizzleTime/Foxel/commit/73d9fa825e1004d37abb7b10faea0cd7f5bcb463"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DrizzleTime/Foxel"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DrizzleTime/Foxel/blob/v2.4.0/api/routers.py#L31"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DrizzleTime/Foxel/blob/v2.4.0/domain/virtual_fs/api.py#L164-L182"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/foxel-through-2.4.0-unauthenticated-file-read-via-api-fs-stream-and-api-fs-thumb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-121555 (GCVE-0-2026-121555)

Vulnerability from cvelistv5 – Published: 2026-11-03 15:17 – Updated: 2026-11-03 18:27

Title

Foxel through 2.4.0 Unauthenticated File Read via /api/fs/stream and /api/fs/thumb

Summary

Severity

8.7 (High)


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

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-03 17:51 UTC

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 7402 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/DrizzleTime/Foxel/issues/152	issue-tracking
https://github.com/DrizzleTime/Foxel	product
https://github.com/DrizzleTime/Foxel/commit/73d9f…	patch
https://github.com/DrizzleTime/Foxel/blob/v2.4.0/…	technical-description
https://github.com/DrizzleTime/Foxel/blob/v2.4.0/…	technical-description
https://www.vulncheck.com/advisories/foxel-throug…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
DrizzleTime	Foxel	Affected: 0 , ≤ 2.4.0 (semver)

Date Public

2026-11-03 00:00

Credits

hieuPenguinnn

Show details on NVD website

JSON

To clipboard

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  "containers": {
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                "id": "CVE-2026-121555",
                "options": [
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                    "Exploitation": "none"
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                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-03T17:51:37.929301Z",
                "version": "2.0.3"
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          "dateUpdated": "2026-11-03T18:27:48.395Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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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

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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.
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