---
id: "CVE-2026-118561"
kind: "vulnerability"
aliases: ["CVE-2026-118561"]
title: "Drupal Single Content Sync: path traversal in file handling, versions through 1.4.19"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["drupal", "package", "self-hosted", "single-content-sync"]
not_affected_if: ["module-not-installed"]
published_at: "2026-10-30T04:18:21+00:00"
first_seen_at: "2026-10-30T04:28:39+00:00"
updated_at: "2026-10-30T04:29:16+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118561", "first_seen_at": "2026-10-30T04:28:39+00:00"}]
---

# Drupal Single Content Sync: path traversal in file handling, versions through 1.4.19

Drupal Single Content Sync versions up to and including 1.4.19 let a file name or path be controlled from outside, enabling path traversal. An attacker could potentially read or write files outside the intended directory on the site's server.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed version of the Single Content Sync module in the Drupal project (for example with `composer show drupal/single_content_sync` or the Extend page in the admin UI).
- If the installed version is `1.4.19` or lower, the site is in the affected range.

## Fix

- Move to a Single Content Sync release newer than `1.4.19`; the exact fixed version is unknown from the sources.

## Timeline

- 2026-10-30T04:28:39+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-118561

## From the sources

External Control of File Name or Path vulnerability in Drupal Single Content Sync allows Path Traversal. This issue affects Single Content Sync versions: from 0.0.0 to 1.4.19.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_