Vulnerability-Lookup

CVE-2026-44692 (GCVE-0-2026-44692)

Vulnerability from cvelistv5 – Published: 2026-06-10 20:03 – Updated: 2026-06-11 14:07

Title

Authenticated Sharp users can download unrelated Laravel Storage objects through the generic download endpoint

Summary

Sharp is a content management framework built for Laravel as a package. Prior to version 9.22.0, Sharp exposes a generic download endpoint that authorizes access only to the supplied Sharp entity instance, but then reads the target storage disk and path from request parameters. Because the requested storage object is not bound to the authorized entity instance, an authenticated Sharp user who can view one valid record may use that record as an authorization anchor to download unrelated disk-relative objects from configured Laravel Storage disks. The confirmed impact is authenticated disclosure of unrelated objects from configured Laravel Storage disks. This issue does not imply arbitrary host filesystem access outside configured Laravel Storage disk roots. This issue has been patched in version 9.22.0.

Severity

7.7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/code16/sharp/security/advisori…	x_refsource_CONFIRM
https://github.com/code16/sharp/releases/tag/v9.22.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
code16	sharp	Affected: < 9.22.0

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-44692

Vulnerability from fkie_nvd - Published: 2026-06-10 22:16 - Updated: 2026-06-11 15:31

Severity

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

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/code16/sharp/releases/tag/v9.22.0
	security-advisories@github.com	https://github.com/code16/sharp/security/advisories/GHSA-748w-hm6r-qc7v

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Sharp is a content management framework built for Laravel as a package. Prior to version 9.22.0, Sharp exposes a generic download endpoint that authorizes access only to the supplied Sharp entity instance, but then reads the target storage disk and path from request parameters. Because the requested storage object is not bound to the authorized entity instance, an authenticated Sharp user who can view one valid record may use that record as an authorization anchor to download unrelated disk-relative objects from configured Laravel Storage disks. The confirmed impact is authenticated disclosure of unrelated objects from configured Laravel Storage disks. This issue does not imply arbitrary host filesystem access outside configured Laravel Storage disk roots. This issue has been patched in version 9.22.0."
    }
  ],
  "id": "CVE-2026-44692",
  "lastModified": "2026-06-11T15:31:25.583",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
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        "impactScore": 4.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
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  "published": "2026-06-10T22:16:57.660",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/code16/sharp/releases/tag/v9.22.0"
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      "source": "security-advisories@github.com",
      "url": "https://github.com/code16/sharp/security/advisories/GHSA-748w-hm6r-qc7v"
    }
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          "value": "CWE-639"
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GHSA-748W-HM6R-QC7V

Vulnerability from github – Published: 2026-05-15 18:01 – Updated: 2026-06-11 13:30

Summary

Authenticated Sharp users can download unrelated Laravel Storage objects through the generic download endpoint

Details

Sharp exposes a generic download endpoint that authorizes access only to the supplied Sharp entity instance, but then reads the target storage disk and path from request parameters.

Because the requested storage object is not bound to the authorized entity instance, an authenticated Sharp user who can view one valid record may use that record as an authorization anchor to download unrelated disk-relative objects from configured Laravel Storage disks.

The confirmed impact is authenticated disclosure of unrelated objects from configured Laravel Storage disks. This issue does not imply arbitrary host filesystem access outside configured Laravel Storage disk roots.

Impact

An authenticated Sharp user with view access to at least one valid Sharp entity instance may be able to download unrelated files from configured Laravel Storage disks by supplying a different disk and path to the generic download endpoint.

Depending on the application, exposed files may include exports, backups, invoices, internal documents, uploads belonging to other records, tenant-specific data, or operational files stored on private application disks.

The attacker does not need authorization to the storage object being downloaded. They only need an authenticated Sharp session and view access to one valid entity instance that can be used as the authorization anchor.

Attack requirements

An attacker must have:

an authenticated Sharp session
view access to at least one valid Sharp entity instance

The attacker does not need authorization to the storage object being downloaded.

Affected endpoint

GET /sharp/{globalFilter}/download/{entityKey}/{instanceId?}

Patches

After the fix, requests to the generic download endpoint without a valid signature are rejected. Modifying the disk, path, entityKey, or instanceId parameters of a Sharp-generated download URL invalidates the signature and prevents the modified request from being used to download another storage object.

Workarounds

If upgrading is not immediately possible, applications should restrict downloads.allowed_disks to the smallest possible set of disks required by Sharp downloads.

Applications should also avoid storing sensitive unrelated files on disks reachable by Sharp’s generic download endpoint, and should add application-level controls to ensure that requested files are bound to the authorized record.

Disk allowlisting reduces the reachable storage surface, but it does not fully fix the missing per-record file binding. Upgrading to a patched version is recommended.

Resources

Laravel signed URLs documentation: https://laravel.com/docs/urls#signed-urls
CWE-639: https://cwe.mitre.org/data/definitions/639.html

Severity

7.7 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "code16/sharp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.22.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-44692"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-15T18:01:03Z",
    "nvd_published_at": "2026-06-10T22:16:57Z",
    "severity": "HIGH"
  },
  "details": "Sharp exposes a generic download endpoint that authorizes access only to the supplied Sharp entity instance, but then reads the target storage `disk` and `path` from request parameters.\n\nBecause the requested storage object is not bound to the authorized entity instance, an authenticated Sharp user who can view one valid record may use that record as an authorization anchor to download unrelated disk-relative objects from configured Laravel Storage disks.\n\nThe confirmed impact is authenticated disclosure of unrelated objects from configured Laravel Storage disks. This issue does not imply arbitrary host filesystem access outside configured Laravel Storage disk roots.\n\n### Impact\n\nAn authenticated Sharp user with view access to at least one valid Sharp entity instance may be able to download unrelated files from configured Laravel Storage disks by supplying a different `disk` and `path` to the generic download endpoint.\n\nDepending on the application, exposed files may include exports, backups, invoices, internal documents, uploads belonging to other records, tenant-specific data, or operational files stored on private application disks.\n\nThe attacker does not need authorization to the storage object being downloaded. They only need an authenticated Sharp session and view access to one valid entity instance that can be used as the authorization anchor.\n\n### Attack requirements\n\nAn attacker must have:\n\n- an authenticated Sharp session\n- view access to at least one valid Sharp entity instance\n\nThe attacker does not need authorization to the storage object being downloaded.\n\n### Affected endpoint\n\n`GET /sharp/{globalFilter}/download/{entityKey}/{instanceId?}`\n\n### Patches\n\nAfter the fix, requests to the generic download endpoint without a valid signature are rejected. Modifying the `disk`, `path`, `entityKey`, or `instanceId` parameters of a Sharp-generated download URL invalidates the signature and prevents the modified request from being used to download another storage object.\n\n### Workarounds\n\nIf upgrading is not immediately possible, applications should restrict `downloads.allowed_disks` to the smallest possible set of disks required by Sharp downloads.\n\nApplications should also avoid storing sensitive unrelated files on disks reachable by Sharp\u2019s generic download endpoint, and should add application-level controls to ensure that requested files are bound to the authorized record.\n\nDisk allowlisting reduces the reachable storage surface, but it does not fully fix the missing per-record file binding. Upgrading to a patched version is recommended.\n\n### Resources\n\n- Laravel signed URLs documentation: https://laravel.com/docs/urls#signed-urls\n- CWE-639: https://cwe.mitre.org/data/definitions/639.html",
  "id": "GHSA-748w-hm6r-qc7v",
  "modified": "2026-06-11T13:30:32Z",
  "published": "2026-05-15T18:01:03Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/code16/sharp/security/advisories/GHSA-748w-hm6r-qc7v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44692"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/code16/sharp"
    },
    {
      "type": "WEB",
      "url": "https://github.com/code16/sharp/releases/tag/v9.22.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Authenticated Sharp users can download unrelated Laravel Storage objects through the generic download endpoint"
}

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

CVE-2026-44692 (GCVE-0-2026-44692)

FKIE_CVE-2026-44692

GHSA-748W-HM6R-QC7V

Impact

Attack requirements

Affected endpoint

Patches

Workarounds

Resources

Tags

Sightings

Nomenclature