Vulnerability-Lookup

GHSA-JV3F-QWF9-WVQ9

Vulnerability from github – Published: 2026-05-18 15:30 – Updated: 2026-05-18 15:30

Details

Dify version 1.14.1 and prior contain an authorization bypass vulnerability in the file preview endpoint that allows any authenticated user to read up to 3,000 characters of any uploaded document across all tenants and workspaces using only the file's UUID. Attackers can access the /console/api/files/{file_id}/preview endpoint with an intercepted file UUID to extract sensitive content from documents without ownership or workspace permission verification. NOTE: Dify Cloud allows unauthenticated free self-registration, making account creation trivially accessible to any attacker.

Severity ?

5.9 (Medium)


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

8.2 (High)


                  
                    CVSS:4.0/AV:N/AC:H/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-2026-41949"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-18T15:16:26Z",
    "severity": "HIGH"
  },
  "details": "Dify version 1.14.1 and prior contain an authorization bypass vulnerability in the file preview endpoint that allows any authenticated user to read up to 3,000 characters of any uploaded document across all tenants and workspaces using only the file\u0027s UUID. Attackers can access the /console/api/files/{file_id}/preview endpoint with an intercepted file UUID to extract sensitive content from documents without ownership or workspace permission verification. NOTE: Dify Cloud allows unauthenticated free self-registration, making account creation trivially accessible to any attacker.",
  "id": "GHSA-jv3f-qwf9-wvq9",
  "modified": "2026-05-18T15:30:38Z",
  "published": "2026-05-18T15:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41949"
    },
    {
      "type": "WEB",
      "url": "https://github.com/langgenius/dify/pull/35797"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/d50a0240-7951-4939-b989-9bded66c7682"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-preview-endpoint"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/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-2026-41949 (GCVE-0-2026-41949)

Vulnerability from cvelistv5 – Published: 2026-05-18 13:52 – Updated: 2026-05-19 16:21 X_Open Source

Title

Dify v1.14.1 Authorization Bypass via File Preview Endpoint

Summary

Severity ?

8.2 (High)


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

5.9 (Medium)


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

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

VulnCheck

References

3 references

URL	Tags
https://huntr.com/bounties/d50a0240-7951-4939-b98…	technical-descriptionexploit
https://github.com/langgenius/dify/pull/35797	issue-trackingpatch
https://www.vulncheck.com/advisories/dify-authori…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
langgenius	dify	Affected: 0 , ≤ 1.14.1 (semver)

Date Public ?

2026-03-30 00:00

Credits

Ido Shani and Gal Zaban of Zafran Security

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-41949",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-19T16:21:14.373432Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-19T16:21:32.170Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "defaultStatus": "affected",
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          "versions": [
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              "lessThanOrEqual": "1.14.1",
              "status": "affected",
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            }
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      "credits": [
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      "datePublic": "2026-03-30T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
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        }
      ],
      "metrics": [
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackVector": "NETWORK",
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            "baseSeverity": "HIGH",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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        },
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          ],
          "url": "https://github.com/langgenius/dify/pull/35797"
        },
        {
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          "url": "https://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-preview-endpoint"
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    "datePublished": "2026-05-18T13:52:03.111Z",
    "dateReserved": "2026-04-22T18:50:43.622Z",
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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-JV3F-QWF9-WVQ9

CVE-2026-41949 (GCVE-0-2026-41949)

Tags

Sightings

Nomenclature