Vulnerability · Published Aug 25, 2026 · Assigned by drupal
CVE-2026-15088Development Environment - Critical - Unsupported - SA-CONTRIB-2026-089
Medium 5.7
In plain English
A medium-severity improper input validation in Development Environment from Drupal. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).
Severity (CVSS 3.1)5.7Medium
Exploit odds (30 days)0.3%top 75.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Vulnerability in Drupal Development Environment. This issue affects Development Environment versions: *.*.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist:https://packages.drupal.org/8 | drupal/development_environment | no fix listed | DRUPAL-CONTRIB-2026-089 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Drupal | Development Environment | *.* |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N