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Fencer Vulns
medium 6.6

CVE-2026-6366 json

Drupal core - Moderately critical - Gadget Chain - SA-CORE-2026-002

published 2026-04-15 6 mo ago modified 2026-09-10 1 mo ago also BIT-drupal-2026-6366 , DRUPAL-CORE-2026-002 , EUVD-2026-30999 , GHSA-xmjc-63pr-2mpg

cvss
6.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

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.

Patch / fix

  • packagist drupal/core 10.5.9, 10.6.7, 11.2.11, 11.3.7
  • bitnami drupal 10.5.9, 10.6.7, 11.2.11, 11.3.7
  • Drupal Drupal core 10.5.9, 10.6.7, 11.2.11, 11.3.7

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-6366 updated cvss 6.6

drupal: Drupal core: Object Injection vulnerability

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
6 mo ago

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.6 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 6.6 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 6.6 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 6.6 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
packagist drupal/core
>=8.0.0, <10.5.9
>=10.6.0, <10.6.7
>=11.0.0, <11.2.11
>=11.3.0, <11.3.7
10.5.9
10.6.7
11.2.11
11.3.7
bitnami drupal
>=8.0.0, <10.5.9
>=10.6.0, <10.6.7
>=11.0.0, <11.2.11
>=11.3.0, <11.3.7
10.5.9
10.6.7
11.2.11
11.3.7

Affected products

  • Drupal Drupal core

Classification

Weakness
  • CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.