CVE-2026-1556 MEDIUM

CVE-2026-1556: Information disclosure via file URI overwrite in File (Field) Paths

Vendor Drupal
Product Drupal File (Field) Paths
Weakness CWE-200 · Info exposure
Published March 26, 2026
Last update March 27, 2026

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

What the vulnerability does

01Description

Information disclosure in the file URI processing of File (Field) Paths in Drupal File (Field) Paths 7.x prior to 7.1.3 on Drupal 7.x allows authenticated users to disclose other users’ private files via filename‑collision uploads. This can cause hook_node_insert() consumers (for example, email attachment modules) to receive the wrong file URI, bypassing normal access controls on private files.

Explanation of Vulnerability in Simple Terms

02Summary

The File (Field) Paths module for Drupal exposes sensitive file path information to unauthenticated users. An attacker can discover the server's directory structure and file locations without logging in, potentially aiding reconnaissance for further attacks. Update to version 7.x-1.3 or later to restrict this information.

What an attacker can do

03Attacker Capabilities

View the server's file paths and directory structure without authentication.

Potential impact on your site

04Site Impact

Attackers can map your server's file structure, increasing risk of targeted attacks on known vulnerable paths.

Conditions required to exploit

05Prerequisites

Network access to the Drupal site; no authentication or user interaction required.

Key dates

06Disclosure timeline

March 26, 2026 CVE published
March 27, 2026 Record updated