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CVE-2026-6366· NVD / CVE Program· CNA drupal

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

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.

MediumCVSS 6.6 · v3.1—No exploit Fix available
Published
May 19, 2026
Updated
Jul 24, 2026
EPSS
0.4% · 34th percentile
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Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.6 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Affected systems

VendorProduct
drupaldrupal

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • drupal drupal8.0.0 and later · before 10.5.9
  • drupal drupal10.6.0 and later · before 10.6.7
  • drupal drupal11.0.0 and later · before 11.2.11
  • drupal drupal11.3.0 and later · before 11.3.7

Versions reported by the vendor

Affected version ranges reported by the assigning authority (drupal). Independent of NVD's CPE analysis and usually ahead of it.

  • Drupal Drupal core

    • 8.0.0 and later · before 10.5.9affected · semver
    • 10.6.0 and later · before 10.6.7affected · semver
    • 11.0.0 and later · before 11.2.11affected · semver
    • 11.3.0 and later · before 11.3.7affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Packagistdrupal/corefrom 10.6.0 · before 10.6.710.6.7
Packagistdrupal/corefrom 11.0.0 · before 11.2.1111.2.11
Packagistdrupal/corefrom 11.3.0 · before 11.3.711.3.7
Packagistdrupal/corefrom 8.0.0 · before 10.5.910.5.9

Same product

drupal: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-7602Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-004KEV
    99Now
  • CVE-2018-7600Drupal before 7.58, 8.x before 8.3.9, 8.4.x before 8.4.6, and 8.5.x before 8.5.1 allows remote attackers to execute arbitrary code because oKEV
    99Now
  • CVE-2019-6340Drupal core - Highly critical - Remote Code ExecutionKEV
    90Now
  • CVE-2020-13671Drupal core does not properly sanitize certain filenames on uploaded files, which can lead to files being interpreted as the incorrect extenKEV
    76This week
  • CVE-2026-9082Drupal core - Highly critical - SQL injection - SA-CORE-2026-004KEV
    74This week
  • CVE-2014-3704The expandArguments function in the database abstraction API in Drupal core 7.x before 7.32 does not properly construct prepared statements,
    60This week

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Drupal Drupal core10.5.9Vendor (CNA)
Drupal Drupal core10.6.7Vendor (CNA)
Drupal Drupal core11.2.11Vendor (CNA)
Drupal Drupal core11.3.7Vendor (CNA)
Packagist:drupal/core10.5.9Package registry (OSV)
Packagist:drupal/core10.6.7Package registry (OSV)
Packagist:drupal/core11.2.11Package registry (OSV)
Packagist:drupal/core11.3.7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-55636526 days apartDrupal core - Less critical - Gadget chain - SA-CORE-2024-006
    39Monitor
  • CVE-2024-55637526 days apartDrupal core - Moderately critical - Gadget chain - SA-CORE-2024-007
    39Monitor
  • CVE-2024-55638526 days apartDrupal core - Moderately critical - Gadget chain - SA-CORE-2024-008
    39Monitor
  • CVE-2025-31674414 days apartDrupal core - Moderately critical - Gadget Chain - SA-CORE-2025-003
    30Monitor
  • CVE-2026-5580352 days apartDrupal core - Critical - PHP object injection - SA-CORE-2026-005
    23Monitor
  • CVE-2026-5580452 days apartDrupal core - Moderately critical - Gadget chain - SA-CORE-2026-006
    23Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-915 · Improperly Controlled Modification of Dynamically-Determined Object Attributes

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records