Summary
Drupal's uniqueness checking for certain user fields is inconsistent depending on the database engine and its collation. As a result, a user may be able to register with the same email address as another user. This may lead to data integrity issues. This issue affects Drupal Core: from 8.0.0 before 10.2.11, from 10.3.0 before 10.3.9, from 11.0.0 before 11.0.8.
Impact
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Remediation advice
drupal/core to 10.2.11 or later; drupal/core to 10.3.9 or later; drupal/core to 11.0.8 or later; drupal/core-recommended to 10.2.11 or later; drupal/core-recommended to 10.3.9 or later; drupal/core-recommended to 11.0.8 or later; drupal/drupal to 10.2.11 or later; drupal/drupal to 10.3.9 or later; drupal/drupal to 11.0.8 or later
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is CVE-2024-55634? CVE-2024-55634 is a medium-severity security vulnerability in drupal/core (composer), affecting versions >= 8.0.0, < 10.2.11. It is fixed in 10.2.11, 10.3.9, 11.0.8.
- Which packages are affected by CVE-2024-55634?
drupal/core(composer) (versions >= 8.0.0, < 10.2.11)drupal/core-recommended(composer) (versions >= 8.0.0, < 10.2.11)drupal/drupal(composer) (versions >= 8.0.0, < 10.2.11)
- Is there a fix for CVE-2024-55634? Yes. CVE-2024-55634 is fixed in 10.2.11, 10.3.9, 11.0.8. Upgrade to this version or later.
- Is CVE-2024-55634 exploitable, and should I be worried? Whether CVE-2024-55634 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2024-55634 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2024-55634?
- Upgrade
drupal/coreto 10.2.11 or later - Upgrade
drupal/coreto 10.3.9 or later - Upgrade
drupal/coreto 11.0.8 or later - Upgrade
drupal/core-recommendedto 10.2.11 or later - Upgrade
drupal/core-recommendedto 10.3.9 or later - Upgrade
drupal/core-recommendedto 11.0.8 or later - Upgrade
drupal/drupalto 10.2.11 or later - Upgrade
drupal/drupalto 10.3.9 or later - Upgrade
drupal/drupalto 11.0.8 or later
- Upgrade