CVE-2026-107249 Drupal Block AJAX - Insecure Deserialization

Drupal Block AJAX <= 3.0.2 contains an object injection vulnerability caused by improperly controlled modification of dynamically-determined object attributes, letting attackers inject malicious objects remotely, exploit requires crafted request.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.19% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Insecure Deserialization
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
30 October 2026
Updated
31 October 2026
Weakness
CWE-915

Vendor fix

Upgrade to a version later than 3.0.2 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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