Is there a patch available for CVE-2026-118574?

Yes, a patch is available for CVE-2026-118574. Update the affected software to the latest version immediately.

S3 File System CVE-2026-118574

EUVD-2026-113692

Incorrect Permission Assignment for Critical Resource (CWE-732)

2026-10-30 drupal

GHSA-vj8c-wmj2-3vg2

Privilege Escalation Information Disclosure Drupal S3 File System

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Vulnerability Assessment

Weakness

CWE

CWE-732

OWASP Top 10:2025

A01:2025 - Broken Access Control

ASVS 5.0

V13 - Configuration Permission assignment review

Monitor Track and reassess. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).

Patch available 0.1% exploitation probability (EPSS)

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AnalysisCVE.org

Incorrect Permission Assignment for Critical Resource vulnerability in Drupal S3 File System allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects S3 File System versions: from 0.0.0 to 3.12.0.

Affected VersionsENISA

S3 File System 0.0.0 <3.12.0

Affected Packages

composer drupal/s3fs fix: 3.12.0

euvd s3_file_system fix: 3.12.0

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in composer, euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Exploit and PoC references, threat intelligence from 22 sources

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Lifecycle Timeline

Patch available

Oct 30, 2026 - 04:01 EUVD

CVE Published

Oct 30, 2026 - 03:08 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.1%

Top 97% exploitable

Data Quality

2 sources

Confidence: Low

EUVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity Not scored yet

CISA KEV No

Public POC No

EPSS 0.1%

Patch available Yes

Active threat No

Deciding rule

No CVSS yet + weak signal (CWE or non-zero EPSS)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

Attack Technique

Privilege Escalation HIGH

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.