OctoPrint File Download API files.py _validate path traversal (CVE-2026-94489) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-94489

OctoPrint File Download API files.py _validate path traversal

Answer in brief

CVE-2026-94489 records a Unknown severity vulnerability in OctoPrint File Download API files.py _validate path traversal. The current sources do not mark it as known exploited. The current feed maps n/a/OctoPrint (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 21, 2026Updated Sep 21, 2026Source checked Sep 22, 2026First seen by HOL Sep 21, 2026Material review Sep 21, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. 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 n/a/OctoPrint (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
n/a/OctoPrintgeneric	1.0.0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for n/a/OctoPrint.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 21, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 21, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 21, 2026

Sources and claim methodology

Upstream source description

A vulnerability was identified in OctoPrint 1.0.0. Affected by this vulnerability is the function _validate of the file src/octoprint/server/api/files.py of the component File Download API. Such manipulation of the argument filename leads to path traversal. The attack may be performed from remote. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Quoted source text, attributed separately from HOL analysis.