CVE-2026-11437 (GCVE-0-2026-11437)

Vulnerability from cvelistv5 – Published: 2026-06-06 16:30 – Updated: 2026-06-06 16:30
VLAI
Title
perfree go-fastdfs-web Installation Endpoint checkServer server-side request forgery
Summary
A flaw has been found in perfree go-fastdfs-web up to 1.3.7. Affected is the function checkServer of the file /install/checkServer of the component Installation Endpoint. Executing a manipulation can lead to server-side request forgery. The attack can be executed remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
6.9 (Medium)
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
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
7.3 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CWE
  • CWE-918 - Server-Side Request Forgery
Assigner
References
URL Tags
https://vuldb.com/vuln/369017 vdb-entrytechnical-description
https://vuldb.com/vuln/369017/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-11437 third-party-advisory
https://vuldb.com/submit/822726 third-party-advisory
https://www.notion.so/Server-Side-Request-Forgery… exploit
Impacted products
Vendor Product Version
perfree go-fastdfs-web Affected: 1.3.0
Affected: 1.3.1
Affected: 1.3.2
Affected: 1.3.3
Affected: 1.3.4
Affected: 1.3.5
Affected: 1.3.6
Affected: 1.3.7
    cpe:2.3:a:perfree:go-fastdfs-web:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
din4 (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

{
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    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:perfree:go-fastdfs-web:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Installation Endpoint"
          ],
          "product": "go-fastdfs-web",
          "vendor": "perfree",
          "versions": [
            {
              "status": "affected",
              "version": "1.3.0"
            },
            {
              "status": "affected",
              "version": "1.3.1"
            },
            {
              "status": "affected",
              "version": "1.3.2"
            },
            {
              "status": "affected",
              "version": "1.3.3"
            },
            {
              "status": "affected",
              "version": "1.3.4"
            },
            {
              "status": "affected",
              "version": "1.3.5"
            },
            {
              "status": "affected",
              "version": "1.3.6"
            },
            {
              "status": "affected",
              "version": "1.3.7"
            }
          ]
        }
      ],
      "credits": [
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          "type": "reporter",
          "value": "din4 (VulDB User)"
        },
        {
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          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw has been found in perfree go-fastdfs-web up to 1.3.7. Affected is the function checkServer of the file /install/checkServer of the component Installation Endpoint. Executing a manipulation can lead to server-side request forgery. The attack can be executed remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way."
        }
      ],
      "metrics": [
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            "baseSeverity": "MEDIUM",
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            "baseSeverity": "HIGH",
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            "version": "2.0"
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      "problemTypes": [
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              "description": "Server-Side Request Forgery",
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      "providerMetadata": {
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        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
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      "references": [
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          "name": "VDB-369017 | perfree go-fastdfs-web Installation Endpoint checkServer server-side request forgery",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/369017"
        },
        {
          "name": "VDB-369017 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/369017/cti"
        },
        {
          "name": "CVE-2026-11437 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-11437"
        },
        {
          "name": "Submit #822726 | perfree go-fastdfs-web \u22641.3.7 Server-Side Request Forgery",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/822726"
        },
        {
          "tags": [
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          "url": "https://www.notion.so/Server-Side-Request-Forgery-SSRF-in-go-fastdfs-web-Installation-Endpoint-35aea92a3c41806485ffeeac7e18126a"
        }
      ],
      "timeline": [
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          "lang": "en",
          "time": "2026-06-05T02:00:00.000Z",
          "value": "VulDB entry created"
        },
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          "time": "2026-06-06T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-06-06T00:17:55.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "perfree go-fastdfs-web Installation Endpoint checkServer server-side request forgery"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-11437",
    "datePublished": "2026-06-06T16:30:12.201Z",
    "dateReserved": "2026-06-05T22:12:51.217Z",
    "dateUpdated": "2026-06-06T16:30:12.201Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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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.


Detection rules are retrieved from Rulezet.