SB2026103025 - Incorrect permission assignment for critical resource in S3 File System module for Drupal
Published: October 30, 2026
Security Bulletin ID
SB2026103025
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Incorrect permission assignment for critical resource (CVE-ID: CVE-2026-118574)
CWE-ID: CWE-732 - Incorrect Permission Assignment for Critical Resource
CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to incorrect permission assignment for critical resource. A remote attacker can cause files to be saved with incorrect S3 access control lists (ACLs) or corrupted metadata.
Remediation
Install update from vendor's website.