Medium · CVSS 6.5CVE-2026-54054

Transmute has full-read SSRF in URL file import (POST /api/files/url) — no host/IP validation, follows redirectsCVE-2026-54054

Answer in brief

CVE-2026-54054 records a Medium severity (CVSS 6.5) vulnerability in Transmute has full-read SSRF in URL file import (POST /api/files/url) — no host/IP validation, follows redirects. The current sources do not mark it as known exploited. The current feed maps transmute-app/transmute (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 10, 2026Updated Sep 30, 2026Source checked Oct 26, 2026First seen by HOL Sep 10, 2026Material review Sep 30, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.5
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps transmute-app/transmute (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
transmute-app/transmutegeneric	<1.3.0	1.3.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for transmute-app/transmute.
Review the reported fix. Update transmute-app/transmute to 1.3.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 10, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

geesondog RhaPHP Mp Module Media Proxy Show.php image server-side request forgeryAlso CWE-918