Object Injection Vulnerability in Drupal Core by Drupal
CVE-2026-6366

6.6MEDIUM

Key Information:

Vendor

Drupal
Status
Drupal Core
Vendor
CVE Published:
19 May 2026

What is CVE-2026-6366?

A vulnerability in Drupal core allows for improper control over the modification of dynamically-determined object attributes, potentially leading to object injection attacks. This may allow attackers to manipulate objects and execute unauthorized commands or access sensitive data. Affected versions span across multiple major releases, highlighting the importance of upgrading to secure versions to mitigate this risk.

Affected Version(s)

Drupal core 8.0.0 < 10.5.9

Drupal core 10.6.0 < 10.6.7

Drupal core 11.0.0 < 11.2.11

References

https://www.drupal.org/sa-core-2026-002

CVSS V3.1

Score:
6.6
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Truong Le (hswww)
menon
t-chen
Benji Fisher (benjifisher)
cilefen (cilefen)
Neil Drumm (drumm)
Greg Knaddison (greggles)
Lee Rowlands (larowlan)
Dave Long (longwave)
Drew Webber (mcdruid)
Ra Mänd (ram4nd)
Jess (xjm)
Greg Knaddison (greggles)
Lee Rowlands (larowlan)
Dave Long (longwave)
Drew Webber (mcdruid)
Juraj Nemec (poker10)
Jess (xjm)
.