CVE-2026-105761 (GCVE-0-2026-105761)

Vulnerability from cvelistv5 – Published: 2026-10-05 23:03 – Updated: 2026-10-05 23:03
VLAI
Title
Dify: IDOR in AppMCPServer PUT Endpoint Allows Modification of Other Apps' MCP Servers
Summary
Dify is an open-source LLM app development platform. Prior to 1.16.0, the PUT /console/api/apps/<app_id>/server endpoint in api/controllers/console/app/mcp_server.py used AppMCPServerController.put() to retrieve an AppMCPServer by the client-supplied server ID without verifying that the server belonged to the requested application and tenant. An authenticated workspace member could therefore change another application's MCP server status and parameters, potentially redirecting data or disabling the service. This issue is fixed in version 1.16.0.
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Impacted products
Vendor Product Version CPE status
langgenius dify Affected: < 1.16.0
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "dify",
          "vendor": "langgenius",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.16.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Dify is an open-source LLM app development platform. Prior to 1.16.0, the PUT /console/api/apps/\u0026lt;app_id\u0026gt;/server endpoint in api/controllers/console/app/mcp_server.py used AppMCPServerController.put() to retrieve an AppMCPServer by the client-supplied server ID without verifying that the server belonged to the requested application and tenant. An authenticated workspace member could therefore change another application\u0027s MCP server status and parameters, potentially redirecting data or disabling the service. This issue is fixed in version 1.16.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "CWE-639: Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-05T23:03:44.949Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/langgenius/dify/security/advisories/GHSA-ccrj-frp2-c945",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/langgenius/dify/security/advisories/GHSA-ccrj-frp2-c945"
        },
        {
          "name": "https://github.com/langgenius/dify/pull/38177",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/langgenius/dify/pull/38177"
        },
        {
          "name": "https://github.com/langgenius/dify/commit/62cb5b586504b730731e28e743c038b72950058e",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/langgenius/dify/commit/62cb5b586504b730731e28e743c038b72950058e"
        },
        {
          "name": "https://github.com/langgenius/dify/releases/tag/1.16.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/langgenius/dify/releases/tag/1.16.0"
        }
      ],
      "source": {
        "advisory": "GHSA-ccrj-frp2-c945",
        "discovery": "UNKNOWN"
      },
      "title": "Dify: IDOR in AppMCPServer PUT Endpoint Allows Modification of Other Apps\u0027 MCP Servers"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-105761",
    "datePublished": "2026-10-05T23:03:44.949Z",
    "dateReserved": "2026-10-05T19:11:07.948Z",
    "dateUpdated": "2026-10-05T23:03:44.949Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "dify",
                "vendor": "langgenius",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 1.16.0"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Dify is an open-source LLM app development platform. Prior to 1.16.0, the PUT /console/api/apps/\u0026lt;app_id\u0026gt;/server endpoint in api/controllers/console/app/mcp_server.py used AppMCPServerController.put() to retrieve an AppMCPServer by the client-supplied server ID without verifying that the server belonged to the requested application and tenant. An authenticated workspace member could therefore change another application\u0027s MCP server status and parameters, potentially redirecting data or disabling the service. This issue is fixed in version 1.16.0."
          }
        ],
        "id": "CVE-2026-105761",
        "lastModified": "2026-10-05T23:17:03.050",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 7.1,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 4.2,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-05T23:17:03.050",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/langgenius/dify/commit/62cb5b586504b730731e28e743c038b72950058e"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/langgenius/dify/pull/38177"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/langgenius/dify/releases/tag/1.16.0"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/langgenius/dify/security/advisories/GHSA-ccrj-frp2-c945"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Received",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-639"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

Loading…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…