Transmute has full-read SSRF in URL file import (POST /api/files/url) — no host/IP validation, follows redirects
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 sourcePublished 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",
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"v0.12.0",
"v0.10.1",
"v0.10",
"v0.10.0",
"v0.9.0",
"v0.9",
"v0.8.0",
"v0.8",
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"v0.7",
"v0.6.1",
"v0.6",
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"v0.5.0",
"v0.5",
"v0.4.5",
"v0.4",
"v0.4.4",
"v0.4.3",
"v0.4.2",
"v0.4.1",
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"v0.1",
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"v0.0.1",
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],
"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"
}