Is there a patch available for CVE-2026-118562?

Yes, a patch is available for CVE-2026-118562. Update the affected software to the latest version immediately.

Single Content Sync CVE-2026-118562

EUVD-2026-113497

Deserialization of Untrusted Data (CWE-502)

2026-10-30 drupal

GHSA-8c38-6hgm-65rx

Deserialization Code Injection Drupal Single Content Sync

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Vulnerability Assessment

Weakness

CWE

CWE-502

OWASP Top 10:2025

A08:2025 - Software or Data Integrity Failures

ASVS 5.0

V1 - Encoding and Sanitization Safe deserialization, type allowlists

MITRE ATT&CK

2 techniques across 2 tactics: Execution, Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Week Schedule remediation this week. Why: No CVSS yet + dangerous CWE (RCE/injection/auth-bypass class).

Patch available 0.3% exploitation probability (EPSS)

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AnalysisCVE.org

Deserialization of Untrusted Data vulnerability in Drupal Single Content Sync allows Object Injection. This issue affects Single Content Sync versions: from 0.0.0 to 1.4.19.

Affected VersionsENISA

Single Content Sync 0.0.0 <1.4.19

Affected Packages

composer drupal/single_content_sync fix: 1.4.19

euvd single_content_sync fix: 1.4.19

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

0.3%

Top 81% 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 0.3%

Patch available Yes

Active threat No

Deciding rule

No CVSS yet + dangerous CWE (RCE/injection/auth-bypass class)

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

Insecure Deserialization CRITICAL

Insecure deserialization occurs when an application converts serialized data (a stream of bytes representing an object's state) back into a living object without proper validation.

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.