---
title: "CVE-2026-100520: Laranode - Path Traversal"
description: "Laranode < 1.2.1 contains a path traversal vulnerability caused by directory traversal sequences in the path parameter of POST /filemanager/upload-file, letting authenticated users write arbitrary files and execute code as other tenants."
url: https://panop.io/threat-heartbeat/CVE-2026-100520/
---

# CVE-2026-100520 Laranode - Path Traversal

Laranode < 1.2.1 contains a path traversal vulnerability caused by directory traversal sequences in the path parameter of POST /filemanager/upload-file, letting authenticated users write arbitrary files and execute code as other tenants.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

Proof of concept available

Authentication

Required

EPSS

0.94% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-100520)

## Details

Type

Path Traversal

Impact

Remote Code Execution, File System Write

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

26 September 2026

Updated

15 October 2026

Weakness

[CWE-22](https://cwe.mitre.org/data/definitions/22.html)

## Vendor fix

Upgrade to version 1.2.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-100520](https://nvd.nist.gov/vuln/detail/CVE-2026-100520)
- [https://github.com/crivion/laranode](https://github.com/crivion/laranode)
- [https://github.com/crivion/laranode/blob/v1.2/app/Actions/Filemanager/UploadFileAction.php](https://github.com/crivion/laranode/blob/v1.2/app/Actions/Filemanager/UploadFileAction.php)
- [https://github.com/crivion/laranode/commit/5c2b18ae99caf77a6fb6cc5c0ab66562bd673424](https://github.com/crivion/laranode/commit/5c2b18ae99caf77a6fb6cc5c0ab66562bd673424)
- [https://github.com/crivion/laranode/pull/21](https://github.com/crivion/laranode/pull/21)
- [https://github.com/crivion/laranode/releases/tag/v1.2.1](https://github.com/crivion/laranode/releases/tag/v1.2.1)
- [https://github.com/crivion/laranode/security/advisories/GHSA-34h2-2696-vfvr](https://github.com/crivion/laranode/security/advisories/GHSA-34h2-2696-vfvr)
- [https://www.vulncheck.com/advisories/laranode-before-1.2.1-path-traversal-in-file-manager-upload-endpoint](https://www.vulncheck.com/advisories/laranode-before-1.2.1-path-traversal-in-file-manager-upload-endpoint)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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