CVE-2026-108097
Received Received - Intake

Reflection Injection in Drupal Core

Vulnerability report for CVE-2026-108097, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-30

Last updated on: 2026-10-30

Assigner: Drupal.org

Description

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Drupal Drupal core allows Reflection Injection. This issue affects Drupal core versions: from 8.9.0 to 10.6.19, from 11.0.0 to 11.3.19, from 11.4.0 to 11.4.10, from 12.0.0-alpha1 to 12.0.0-beta2.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published
2026-10-30
Last Modified
2026-10-30
Generated
2026-10-30
AI Q&A
2026-10-30
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
Drupal Drupal core 8.9.0
Drupal Drupal core 11.0.0
Drupal Drupal core 11.4.0
Drupal Drupal core 12.0.0-alpha1

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-470 The product uses external input with reflection to select which classes or code to use, but it does not sufficiently prevent the input from selecting improper classes or code.

Attack-Flow Graph

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Executive Summary

This vulnerability involves using externally-controlled input to select classes or code in Drupal core, enabling Reflection Injection. It affects multiple Drupal versions from 8.9.0 to 12.0.0-beta2.

Impact Analysis

An attacker could exploit this to execute arbitrary code or escalate privileges on affected Drupal sites, potentially leading to data breaches or site compromise.

Mitigation Strategies

Update Drupal core to the latest secure version immediately. For Drupal 8.9.x to 10.6.19, upgrade to 10.6.20 or later. For 11.0.0 to 11.3.19, upgrade to 11.3.20 or later. For 11.4.0 to 11.4.10, upgrade to 11.4.11 or later. For 12.0.0-alpha1 to 12.0.0-beta2, upgrade to a patched version.

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