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Transmute has full-read SSRF in URL file import (POST /api/files/url) — no host/IP validation, follows redirects

Type: advisorySources: OSV

Transmute is a free, open-source, self-hosted file conversion and compression tool. Prior to version 1.3.0, Transmute's URL import endpoint, `POST /api/files/url`, is vulnerable to Server-Side Request Forgery (SSRF). The HTTP downloader used by this endpoint fetches user-supplied URLs with redirects enabled and does not validate whether the target resolves to a public, external address. As a result, an authenticated user (or guest user if they are enabled) may be able to cause the Transmute server to make HTTP requests to internal or cloud-local resources from the server's network position. Because downloaded content is stored and can later be retrieved through `GET /api/files/{id}`, this issue can result in full-read SSRF rather than blind SSRF. This is fixed in version 1.3.0.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-54054
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 07:54 UTC · Revision 1

Source evidence

Transmute has full-read SSRF in URL file import (POST /api/files/url) — no host/IP validation, follows redirects

core-osv · Original source

Published 10 Sept 2026, 21:52 UTC

Transmute is a free, open-source, self-hosted file conversion and compression tool. Prior to version 1.3.0, Transmute's URL import endpoint, `POST /api/files/url`, is vulnerable to Server-Side Request Forgery (SSRF). The HTTP downloader used by this endpoint fetches user-supplied URLs with redirects enabled and does not validate whether the target resolves to a public, external address. As a result, an authenticated user (or guest user if they are enabled) may be able to cause the Transmute server to make HTTP requests to internal or cloud-local resources from the server's network position. Because downloaded content is stored and can later be retrieved through `GET /api/files/{id}`, this issue can result in full-read SSRF rather than blind SSRF. This is fixed in version 1.3.0.

osv:CVE-2026-54054
Complete source record
{
  "id": "8cfa8b257b39bcc8504dd9d48704702bbec938b0736ac566e89f1c232404e959",
  "url": "https://osv.dev/vulnerability/CVE-2026-54054",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Transmute has full-read SSRF in URL file import (POST /api/files/url) — no host/IP validation, follows redirects",
    "summary": "Transmute is a free, open-source, self-hosted file conversion and compression tool. Prior to version 1.3.0, Transmute's URL import endpoint, `POST /api/files/url`, is vulnerable to Server-Side Request Forgery (SSRF). The HTTP downloader used by this endpoint fetches user-supplied URLs with redirects enabled and does not validate whether the target resolves to a public, external address. As a result, an authenticated user (or guest user if they are enabled) may be able to cause the Transmute server to make HTTP requests to internal or cloud-local resources from the server's network position. Because downloaded content is stored and can later be retrieved through `GET /api/files/{id}`, this issue can result in full-read SSRF rather than blind SSRF. This is fixed in version 1.3.0.",
    "evidence": "osv:CVE-2026-54054",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-54054",
      "aliases": [
        "CVE-2026-54054",
        "GHSA-89m5-mvmx-7xrf"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/transmute-app/transmute",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "be1698c2cb7a61fccbd47d630e49f2aa55e8c2a9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.3.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "be1698c2cb7a61fccbd47d630e49f2aa55e8c2a9"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v1.3.0"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.3.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.2.0",
            "v1.2",
            "v1.1.0",
            "v1.1",
            "v1.0.0",
            "v1.0",
            "v0.12.2",
            "v0.12",
            "v0",
            "v0.12.1",
            "v0.12.0",
            "v0.10.1",
            "v0.10",
            "v0.10.0",
            "v0.9.0",
            "v0.9",
            "v0.8.0",
            "v0.8",
            "v0.7.0",
            "v0.7",
            "v0.6.1",
            "v0.6",
            "v0.6.0",
            "v0.5.0",
            "v0.5",
            "v0.4.5",
            "v0.4",
            "v0.4.4",
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0",
            "v0.3.1",
            "v0.3",
            "v0.3.0",
            "v0.2.0",
            "v0.2",
            "v0.1.2",
            "v0.1",
            "v0.1.1",
            "v0.1.0",
            "v0.0.1",
            "v0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54054.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.821046575Z",
      "provider": "osv",
      "references": [
        "https://github.com/transmute-app/transmute/releases/tag/v1.3.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54054.json",
        "https://github.com/transmute-app/transmute/security/advisories/GHSA-89m5-mvmx-7xrf",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-54054"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-918"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54054.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-54054",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 500987,
  "published_at": "2026-09-10T21:52:18.866+00:00"
}