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Medium

ONLYOFFICE DocumentServer before 10.0.0 SSRF via downloadfile isInJwtToken Bypass

Type: advisorySources: OSV

ONLYOFFICE DocumentServer before 10.0.0 contains an unauthenticated server-side request forgery vulnerability in the /downloadfile/:docid endpoint that allows remote attackers to bypass the private-IP request-filtering-agent by exploiting the isInJwtToken flag when JWT verification is disabled in the default configuration. Attackers can submit a crafted request body containing an internal or loopback URL, which is treated as a DIRECT request skipping private-address filtering, causing the server to fetch and proxy back arbitrary private-network and cloud metadata content.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-110652
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 19:32 UTC · Revision 1

Source evidence

ONLYOFFICE DocumentServer before 10.0.0 SSRF via downloadfile isInJwtToken Bypass

core-osv · Original source

Published 14 Oct 2026, 13:15 UTC

ONLYOFFICE DocumentServer before 10.0.0 contains an unauthenticated server-side request forgery vulnerability in the /downloadfile/:docid endpoint that allows remote attackers to bypass the private-IP request-filtering-agent by exploiting the isInJwtToken flag when JWT verification is disabled in the default configuration. Attackers can submit a crafted request body containing an internal or loopback URL, which is treated as a DIRECT request skipping private-address filtering, causing the server to fetch and proxy back arbitrary private-network and cloud metadata content.

osv:CVE-2026-110652
Complete source record
{
  "id": "2ebe17dbfdd74bfbf4a8271987cddb21753f45a798a69cf25d272c6e6b0cad0f",
  "url": "https://osv.dev/vulnerability/CVE-2026-110652",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ONLYOFFICE DocumentServer before 10.0.0 SSRF via downloadfile isInJwtToken Bypass",
    "summary": "ONLYOFFICE DocumentServer before 10.0.0 contains an unauthenticated server-side request forgery vulnerability in the /downloadfile/:docid endpoint that allows remote attackers to bypass the private-IP request-filtering-agent by exploiting the isInJwtToken flag when JWT verification is disabled in the default configuration. Attackers can submit a crafted request body containing an internal or loopback URL, which is treated as a DIRECT request skipping private-address filtering, causing the server to fetch and proxy back arbitrary private-network and cloud metadata content.",
    "evidence": "osv:CVE-2026-110652",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-110652",
      "aliases": [
        "CVE-2026-110652"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/onlyoffice/documentserver",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "16bac9f9ad54c8145a58e23446c504b5727729ac"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2.5.0"
                      },
                      {
                        "fixed": "10.0.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "16bac9f9ad54c8145a58e23446c504b5727729ac"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v10.0.0"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "10.0.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v9.4.0",
            "v9.3.1",
            "v9.3.0",
            "v9.2.1",
            "v9.2.0",
            "v9.1.0",
            "v9.0.4",
            "v9.0.3",
            "v9.0.2",
            "v9.0.0",
            "v8.3.3",
            "v8.3.2",
            "v8.3.1",
            "v8.3.0",
            "v8.2.2",
            "v8.2.1",
            "v8.2.0",
            "v8.1.3",
            "v8.1.1",
            "v8.1.0",
            "v8.0.1",
            "v8.0.0",
            "v7.5.1",
            "v7.5.0",
            "v7.4.1",
            "v7.4.0",
            "v7.3.3",
            "v7.3.2",
            "v7.3.0",
            "v7.2.2",
            "v7.2.1",
            "v7.2.0",
            "v7.1.1",
            "v7.1.0",
            "v7.0.1",
            "v7.0.0",
            "v6.4.2",
            "v6.4.1",
            "v6.4.0",
            "v6.3.2",
            "v6.3.1",
            "v6.3.0",
            "v6.2.2",
            "v6.2.1",
            "v6.2.0",
            "v6.1.1",
            "v6.1.0",
            "ONLYOFFICE-DocumentServer-6.0.2",
            "ONLYOFFICE-DocumentServer-6.0.1",
            "ONLYOFFICE-DocumentServer-6.0.0",
            "ONLYOFFICE-DocumentServer-5.6.5",
            "ONLYOFFICE-DocumentServer-5.6.4",
            "ONLYOFFICE-DocumentServer-5.6.3",
            "ONLYOFFICE-DocumentServer-5.6.2",
            "ONLYOFFICE-DocumentServer-5.6.1",
            "ONLYOFFICE-DocumentServer-5.6.0",
            "ONLYOFFICE-DocumentServer-5.5.3",
            "ONLYOFFICE-DocumentServer-5.5.1",
            "ONLYOFFICE-DocumentServer-5.5.0",
            "ONLYOFFICE-DocumentServer-5.4.2",
            "ONLYOFFICE-DocumentServer-5.4.1",
            "ONLYOFFICE-DocumentServer-5.4.0-2",
            "ONLYOFFICE-DocumentServer-5.3.4",
            "ONLYOFFICE-DocumentServer-5.3.2",
            "ONLYOFFICE-DocumentServer-5.3.1",
            "ONLYOFFICE-DocumentServer-5.3.0",
            "ONLYOFFICE-DocumentServer-5.2.8",
            "ONLYOFFICE-DocumentServer-5.2.7",
            "ONLYOFFICE-DocumentServer-5.2.6",
            "ONLYOFFICE-DocumentServer-5.2.4",
            "ONLYOFFICE-DocumentServer-5.2.3",
            "ONLYOFFICE-DocumentServer-5.2.2",
            "ONLYOFFICE-DocumentServer-5.2.0",
            "ONLYOFFICE-DocumentServer-5.1.5",
            "ONLYOFFICE-DocumentServer-5.1.4",
            "ONLYOFFICE-DocumentServer-5.1.3",
            "ONLYOFFICE-DocumentServer-5.1.2",
            "ONLYOFFICE-DocumentServer-5.1.1",
            "ONLYOFFICE-DocumentServer-5.1.0",
            "ONLYOFFICE-DocumentServer-5.0.7",
            "ONLYOFFICE-DocumentServer-5.0.6",
            "ONLYOFFICE-DocumentServer-5.0.5",
            "ONLYOFFICE-DocumentServer-5.0.4",
            "ONLYOFFICE-DocumentServer-5.0.3",
            "ONLYOFFICE-DocumentServer-4.4.3",
            "ONLYOFFICE-DocumentServer-4.4.2",
            "ONLYOFFICE-DocumentServer-4.4.1",
            "ONLYOFFICE-DocumentServer-4.3.6",
            "ONLYOFFICE-DocumentServer-4.3.5",
            "ONLYOFFICE-DocumentServer-4.3.4",
            "ONLYOFFICE-DocumentServer-4.3.3",
            "ONLYOFFICE-DocumentServer-4.3.2",
            "ONLYOFFICE-DocumentServer-4.3.1",
            "ONLYOFFICE-DocumentServer-4.3.0",
            "ONLYOFFICE-DocumentServer-4.2.11",
            "ONLYOFFICE-DocumentServer-4.2.10",
            "ONLYOFFICE-DocumentServer-4.2.9",
            "ONLYOFFICE-DocumentServer-4.0.0-9",
            "ONLYOFFICE-DocumentServer-4.2.8",
            "ONLYOFFICE-DocumentServer-4.2.7",
            "ONLYOFFICE-DocumentServer-4.2.5",
            "ONLYOFFICE-DocumentServer-4.2.4",
            "ONLYOFFICE-DocumentServer-4.2.3",
            "ONLYOFFICE-DocumentServer-4.2.1",
            "ONLYOFFICE-DocumentServer-4.2.0",
            "ONLYOFFICE-DocumentServer-4.1.8-1",
            "ONLYOFFICE-DocumentServer-4.1.6-3",
            "ONLYOFFICE-DocumentServer-4.1.5-1",
            "ONLYOFFICE-DocumentServer-4.1.4-3",
            "ONLYOFFICE-DocumentServer-4.1.2-37",
            "ONLYOFFICE-DocumentServer-4.0.3-3",
            "ONLYOFFICE-DocumentServer-4.0.2-4",
            "ONLYOFFICE-DocumentServer-4.0.1-34",
            "ONLYOFFICE-DocumentServer-3.0.0",
            "ONLYOFFICE-Online-Editors-2.5.7",
            "ONLYOFFICE-Online-Editors-2.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110652.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.630564040Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110652.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-110652",
        "https://www.vulncheck.com/advisories/onlyoffice-documentserver-before-ssrf-via-downloadfile-isinjwttoken-bypass",
        "https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#1000",
        "https://github.com/ONLYOFFICE/DocumentServer/releases/tag/v10.0.0",
        "https://github.com/ONLYOFFICE/DocumentServer"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-918"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110652.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-110652",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489209,
  "published_at": "2026-10-14T13:15:00.461+00:00"
}