OctoPrint 1.0.0 File Download API files.py _validate filename path traversal

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k1.70+

Summaryinfo

A vulnerability was found in OctoPrint 1.0.0. It has been classified as problematic. Affected by this issue is the function _validate of the file src/octoprint/server/api/files.py of the component File Download API. Performing a manipulation of the argument filename results in path traversal. This vulnerability is cataloged as CVE-2026-94489. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability, which was classified as problematic, was found in OctoPrint 1.0.0. This affects the function _validate of the file src/octoprint/server/api/files.py of the component File Download API. The manipulation of the argument filename with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality.

This vulnerability is uniquely identified as CVE-2026-94489. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1006 for this issue.

It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/21/2026 Advisory disclosed
09/21/2026 +0 days VulDB entry created
09/21/2026 +0 days VulDB entry last update

Sourcesinfo

Status: Not defined

CVE: CVE-2026-94489 (🔒)
GCVE (CVE): GCVE-0-2026-94489
GCVE (VulDB): GCVE-100-408189
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/21/2026 19:50
Changes: 09/21/2026 19:50 (54)
Complete: 🔍
Submitter: EagleShadow
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #895338: OctoPrint Foundation OctoPrint 1.0.0 CWE: CWE-22 (Path Traversal) (by EagleShadow)

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