Vulnerability · Published Oct 30, 2026 · Assigned by drupal
CVE-2026-107249Block AJAX - Highly critical - PHP object injection - SA-CONTRIB-2026-192
Critical 9.8
In plain English
A critical-severity security flaw in Block AJAX from Drupal. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 66.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Block AJAX allows Object Injection. This issue affects Block AJAX versions: from 0.0.0 to 3.0.2.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist:https://packages.drupal.org/8 | drupal/block_ajax | 3.0.2 | DRUPAL-CONTRIB-2026-192 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Drupal | Block AJAX | 0.0.0 – before 3.0.2 |
Weakness: CWE-915 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H