Is CVE-2026-6366 actively exploited?

No active exploitation of CVE-2026-6366 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-6366 be exploited remotely?

Yes. CVE-2026-6366 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-6366?

CVE-2026-6366 has a CVSS score of 6.6 (MEDIUM).

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MEDIUM

CVE-2026-6366

CWE-915Published: May 19, 2026· Updated: May 20, 2026

6.6

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:16.4th

Official Description

Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Drupal core allows Object Injection.

This issue affects Drupal core: from 8.0.0 before 10.5.9, from 10.6.0 before 10.6.7, from 11.0.0 before 11.2.11, from 11.3.0 before 11.3.7.

NVD Source

Technical Analysis

CVE-2026-6366 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.6.