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.

6271 vulnerabilities reference this CWE, most recent first.

CVE-2026-61559 (GCVE-0-2026-61559)

Vulnerability from cvelistv5 – Published: 2026-09-15 20:58 – Updated: 2026-09-17 16:50
VLAI
Title
@zereight/mcp-gitlab Vulnerable to Server-Side Request Forgery
Summary
`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Starting in version 0.0.1 and prior to version 2.1.27, when the environment variable `ENABLE_DYNAMIC_API_URL=true` is set, the server reads the `X-GitLab-API-URL` HTTP request header and uses it as the base URL for all outbound GitLab API calls made within that request. The server validates that the value is a well-formed URL (`new URL(dynamicApiUrl)`) but applies no allowlist or hostname restriction. The server then attaches the victim's `Private-Token` to every outbound fetch that uses the redirected URL. Any caller who can reach the HTTP transport can set `X-GitLab-API-URL` to an attacker-controlled host. The next GitLab API call the server makes delivers the victim's token to that host. Version 2.1.27 contains a patch.
Severity
9.6 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 16:49 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
zereight gitlab-mcp Affected: >= 0.0.1, < 2.1.27
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Show details on NVD website
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CVE-2026-61520 (GCVE-0-2026-61520)

Vulnerability from cvelistv5 – Published: 2026-07-14 20:17 – Updated: 2026-07-28 01:49 X_Open Source
VLAI
Title
Simple Machines Forum SSRF via image proxy
Summary
Simple Machines Forum 2.1 prior to commit 4bf35cf and 3.0 prior to commit b4d23df contains a server-side request forgery vulnerability in the image proxy that allows authenticated attackers to trigger internal HTTP requests by embedding attacker-controlled URLs in BBCode image tags, which the proxy fetches without validating resolved destination IPs against private address ranges, loopback, or link-local addresses. Attackers can leverage SMF's automatic HMAC signature generation for any embedded image URL to obtain valid signed proxy requests targeting internal services such as cloud instance metadata endpoints, internal web applications, and container network services.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 13:20 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
SimpleMachines SMF Affected: 2.1.0 , < 2.1.7 (semver)
Unaffected: 4bf35cf9e45573a5f55a6f52995086c1da89c096 (git)
Unaffected: 3.0.0 (semver)
Affected: b4d23dfd74a511587c605f9d294cefc3a75b4b26 (git)
    cpe:2.3:a:simplemachines:simple_machines_forum:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-14 00:00
Credits
Hamed Kohi VulnCheck
Show details on NVD website
To clipboard 

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CVE-2026-61430 (GCVE-0-2026-61430)

Vulnerability from cvelistv5 – Published: 2026-07-15 11:25 – Updated: 2026-07-15 12:17
VLAI
Title
PraisonAI before 1.6.78 DNS Rebinding SSRF via web_crawl
Summary
PraisonAI before 1.6.78 contains a server-side request forgery vulnerability in the web_crawl tool that validates hostnames at check time but re-resolves them at connection time without IP pinning. Attackers can use DNS rebinding to bypass SSRF protection and retrieve internal HTTP response bodies from private or loopback services.
Severity
8.4 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
8.5 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 12:17 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
MervinPraison PraisonAI Affected: 0 , < 1.6.78 (semver)
Unaffected: 1.6.78 (semver)
    cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-06-25 00:00
Credits
dinhvaren
Show details on NVD website
To clipboard 

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CVE-2026-61429 (GCVE-0-2026-61429)

Vulnerability from cvelistv5 – Published: 2026-07-11 13:01 – Updated: 2026-07-13 14:37
VLAI
Title
PraisonAI before 1.6.78 SSRF via Crawl4AI Chromium backend
Summary
PraisonAI versions before 1.6.78 contain a server-side request forgery vulnerability in the Crawl4AI/Chromium backend that allows attackers to bypass SSRF validation by exploiting DNS rebinding and HTTP redirects. Attackers can craft URLs that resolve to internal services after the initial validation check, enabling the headless browser to follow redirects and read internal responses including sensitive canary values.
Severity
8.4 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
8.5 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-13 14:36 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
MervinPraison PraisonAI Affected: 0 , < 1.6.78 (semver)
Unaffected: 1.6.78 (semver)
    cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-06-25 00:00
Credits
dinhvaren
Show details on NVD website
To clipboard 

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CVE-2026-61422 (GCVE-0-2026-61422)

Vulnerability from cvelistv5 – Published: 2026-08-21 08:24 – Updated: 2026-08-24 17:03
VLAI
Title
Apache CloudStack: Authenticated pre-validation SSRF in registerTemplate
Summary
Authenticated pre-validation SSRF vulnerability in Apache CloudStack's template and ISO registration functionality. When registering a template or ISO, CloudStack makes a live HTTP HEAD/GET call to determine file size for secondary storage usage-limit checks, and this happens before URL validation is performed. However, this does not pose a malicious template or ISO registration risk, as URL validation still occurs prior to the actual download by the Secondary Storage VM.This issue affects Apache CloudStack: in 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 17:03 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache CloudStack Affected: 4.20.3.0 (semver)
Affected: 4.21.0.0 , ≤ 4.22.1.0 (semver)
Create a notification for this product.
Credits
Yuliang Xiao <xyl1509410143@outlook.com>
Show details on NVD website
To clipboard 

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CVE-2026-60105 (GCVE-0-2026-60105)

Vulnerability from cvelistv5 – Published: 2026-07-08 21:02 – Updated: 2026-07-14 22:03
VLAI
Title
Monsta FTP < 2.14.5 SSRF via IPv4-Mapped IPv6 Address Bypass
Summary
Monsta FTP before 2.14.5 contains a server-side request forgery vulnerability in the fetchRemoteFile action caused by an incomplete IP blocklist check in the isBlockedIP() function, which fails to detect embedded IPv4 addresses within IPv4-mapped IPv6 addresses. An unauthenticated attacker can obtain a CSRF token from the public getSystemVars endpoint and submit a fetchRemoteFile request with a source URL resolving to an IPv4-mapped address, causing the server to issue HTTP requests to internal services and write responses to an attacker-controlled FTP destination, enabling retrieval of cloud instance metadata credentials.
Severity
7.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:43 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
Monsta Limited of New Zealand Monsta FTP Affected: 0 , < 2.14.5 (semver)
    cpe:2.3:a:monstaftp:monsta_ftp:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-02 00:00
Credits
Valentin Lobstein (Chocapikk) VulnCheck
Show details on NVD website
To clipboard 

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CVE-2026-60091 (GCVE-0-2026-60091)

Vulnerability from cvelistv5 – Published: 2026-07-10 13:58 – Updated: 2026-07-10 17:00
VLAI
Title
PraisonAI before 4.6.78 Unauthenticated SSRF via webhook_url
Summary
PraisonAI before 4.6.78 contains an unauthenticated server-side request forgery vulnerability in the Jobs API /api/v1/runs endpoint. The webhook_url parameter is validated at request time but re-resolved at connection time, allowing attackers to use DNS rebinding to reach internal services with a blind SSRF attack.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-10 16:39 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
MervinPraison PraisonAI Affected: 0 , < 4.6.78 (semver)
Unaffected: 4.6.78 (semver)
    cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-06-25 00:00
Credits
dinhvaren
Show details on NVD website
To clipboard 

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CVE-2026-60033 (GCVE-0-2026-60033)

Vulnerability from cvelistv5 – Published: 2026-07-20 18:10 – Updated: 2026-07-23 14:56
VLAI
Title
Joomla Extension - themexpert.com - SSRF via remote download in JMedia Extension < 1.6.0
Summary
Joomla Extension - themexpert.com - SSRF via remote download in JMedia Extension < 1.6.0 - The Joomla extension JMedia is vulnerable to an SSRF vulnerability. Remote-URL download could target internal/reserved addresses.
Severity
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 20:14 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-59973 (GCVE-0-2026-59973)

Vulnerability from cvelistv5 – Published: 2026-09-15 15:13 – Updated: 2026-09-16 16:06
VLAI
Title
mcp-from-openapi: Bypass of OpenAPI external $ref SSRF fix in latest FrontMCP and mcp-from-openapi
Summary
FrontMCP is a TypeScript-first framework for the Model Context Protocol (MCP). From mcp-from-openapi 2.3.0 until 2.5.0 and from frontmcp and @frontmcp/adapters 1.2.1 until 1.5.0, libs/adapters/src/openapi/openapi.adapter.ts loadOpenAPISpec() forwards untrusted OpenAPI url and spec inputs and loadOptions.refResolution to OpenAPIToolGenerator.fromURL() and OpenAPIToolGenerator.fromJSON(). The external $ref guard checks parsed hostname strings without resolving addresses, pinning validated addresses, revalidating redirect targets, or normalizing IPv4-mapped IPv6. An authenticated user who can import or configure an OpenAPI specification in a hosted or multi-user deployment can use DNS-to-loopback resolution, redirect-to-loopback behavior, or IPv4-mapped IPv6 loopback forms to cause backend-origin requests to internal services. This can expose internal administrative APIs, metadata-like services, and other private network endpoints. The practical impact is lower when only a trusted local administrator can configure OpenAPI specs, and disabling external reference protocols prevents the external $ref request. This issue is fixed in mcp-from-openapi 2.5.0 and frontmcp and @frontmcp/adapters 1.5.0.
Severity
8.5 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 16:06 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-59931 (GCVE-0-2026-59931)

Vulnerability from cvelistv5 – Published: 2026-07-28 17:27 – Updated: 2026-07-28 18:13
VLAI
Title
PhpSpreadsheet: SSRF bypass via HTTP redirect in WEBSERVICE() domain whitelist
Summary
PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In versions 4.0.0 through 5.8.0, 3.3.0 through 3.10.6, 2.2.0 through 2.4.6, 2.0.0 through 2.1.17, and all releases up to and including 1.30.5, the WEBSERVICE() domain whitelist can be bypassed via an HTTP redirect (SSRF). In Calculation/Web/Service.php, the webService() method validates a URL's host against the whitelist set via Spreadsheet::setDomainWhiteList(), then fetches content with file_get_contents($url, false, $ctx); because PHP's HTTP stream wrapper follows 301/302 redirects automatically (up to 20 hops) and the redirect target is never re-validated, an attacker who can trigger a redirect from a whitelisted domain can reach arbitrary URLs, including internal addresses. An attacker able to upload XLSX files to an application that uses setDomainWhiteList() and getCalculatedValue() can achieve a full-read SSRF, returning up to 32,767 bytes of the response body as a cell's calculated value, which enables exfiltration of cloud metadata (AWS/GCP/Azure credentials via http://169.254.169.254/), access to internal-only services, and internal port scanning (the port is not validated). This issue has been fixed in versions 5.8.1, 3.10.7, 2.4.7, 2.1.18, and 1.30.6.
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: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 18:13 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
PHPOffice PhpSpreadsheet Affected: >= 4.0.0, < 5.8.1
Affected: >= 3.3.0, < 3.10.7
Affected: >= 2.2.0, < 2.4.7
Affected: >= 2.0.0, < 2.1.18
Affected: < 1.30.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In versions 4.0.0 through 5.8.0, 3.3.0 through 3.10.6, 2.2.0 through 2.4.6, 2.0.0 through 2.1.17, and all releases up to and including 1.30.5, the WEBSERVICE() domain whitelist can be bypassed via an HTTP redirect (SSRF). In Calculation/Web/Service.php, the webService() method validates a URL\u0027s host against the whitelist set via Spreadsheet::setDomainWhiteList(), then fetches content with file_get_contents($url, false, $ctx); because PHP\u0027s HTTP stream wrapper follows 301/302 redirects automatically (up to 20 hops) and the redirect target is never re-validated, an attacker who can trigger a redirect from a whitelisted domain can reach arbitrary URLs, including internal addresses. An attacker able to upload XLSX files to an application that uses setDomainWhiteList() and getCalculatedValue() can achieve a full-read SSRF, returning up to 32,767 bytes of the response body as a cell\u0027s calculated value, which enables exfiltration of cloud metadata (AWS/GCP/Azure credentials via http://169.254.169.254/), access to internal-only services, and internal port scanning (the port is not validated). This issue has been fixed in versions 5.8.1, 3.10.7, 2.4.7, 2.1.18, and 1.30.6."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-28T17:27:27.300Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-6hq5-7373-42rg",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-6hq5-7373-42rg"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/commit/7ef7b25e8548a6ded79dac74e2e2c7acdac38d8d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/7ef7b25e8548a6ded79dac74e2e2c7acdac38d8d"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/1.30.6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/1.30.6"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.1.18",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.1.18"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.4.7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.4.7"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/3.10.7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/3.10.7"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/5.8.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/5.8.1"
        }
      ],
      "source": {
        "advisory": "GHSA-6hq5-7373-42rg",
        "discovery": "UNKNOWN"
      },
      "title": "PhpSpreadsheet: SSRF bypass via HTTP redirect in WEBSERVICE() domain whitelist"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-59931",
    "datePublished": "2026-07-28T17:27:27.300Z",
    "dateReserved": "2026-07-07T18:20:06.126Z",
    "dateUpdated": "2026-07-28T18:13:17.566Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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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