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CVE-2024-55636 — Vulnerability in drupal/core-recommended — CVE...

LOW

Drupal core contains a potential PHP Object Injection vulnerability

Published December 10, 2024Updated December 10, 2025Source: osv

Summary

Drupal core contains a potential PHP Object Injection vulnerability that (if combined with another exploit) could lead to Artbitrary File Deletion. It is not directly exploitable. This issue is mitigated by the fact that in order to be exploitable, a separate vulnerability must be present that allows an attacker to pass unsafe input to `unserialize()`. There are no such known exploits in Drupal core. To help protect against this vulnerability, types have been added to properties in some of Drupal core's classes. If an application extends those classes, the same types may need to be specified on the subclass to avoid a `TypeError`. 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.

Advisory Timeline

  • First published December 10, 2024 (671 days ago).
  • Last revised December 10, 2025 — 366 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer
Update drupal/core-recommended to 10.2.11 or later
composer require "drupal/core-recommended:^10.2.11"
Composer
Update drupal/core to 10.3.9 or later
composer require "drupal/core:^10.3.9"
Composer
Update drupal/core to 10.2.11 or later
composer require "drupal/core:^10.2.11"
Composer
Update drupal/core-recommended to 10.3.9 or later
composer require "drupal/core-recommended:^10.3.9"
Composer
Update drupal/drupal to 10.2.11 or later
composer require "drupal/drupal:^10.2.11"
Composer
Update drupal/drupal to 11.0.8 or later
composer require "drupal/drupal:^11.0.8"
Composer
Update drupal/core to 11.0.8 or later
composer require "drupal/core:^11.0.8"
Composer
Update drupal/drupal to 10.3.9 or later
composer require "drupal/drupal:^10.3.9"
Composer
Update drupal/core-recommended to 11.0.8 or later
composer require "drupal/core-recommended:^11.0.8"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (9)

Affects 1 ecosystem: packagist (3).

PackageEcosystemAffectedFixed In
drupal/core-recommended
packagist
10.0.0, 10.0.0-alpha1, 10.0.0-alpha2, 10.0.0-alpha3 (+217 more)10.2.11
drupal/core
packagist
10.3.0, 10.3.1, 10.3.2, 10.3.3 (+5 more)10.3.9
drupal/core
packagist
10.0.0, 10.0.0-alpha1, 10.0.0-alpha2, 10.0.0-alpha3 (+217 more)10.2.11
drupal/core-recommended
packagist
10.3.0, 10.3.1, 10.3.2, 10.3.3 (+5 more)10.3.9
drupal/drupal
packagist
10.0.0, 10.0.0-alpha1, 10.0.0-alpha2, 10.0.0-alpha3 (+217 more)10.2.11
drupal/drupal
packagist
11.0.0, 11.0.1, 11.0.2, 11.0.3 (+4 more)11.0.8
drupal/core
packagist
11.0.0, 11.0.1, 11.0.2, 11.0.3 (+4 more)11.0.8
drupal/drupal
packagist
10.3.0, 10.3.1, 10.3.2, 10.3.3 (+5 more)10.3.9
drupal/core-recommended
packagist
11.0.0, 11.0.1, 11.0.2, 11.0.3 (+4 more)11.0.8

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2024-55636?
Drupal core contains a potential PHP Object Injection vulnerability This vulnerability has been assigned a severity rating of LOW (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2024-55636?
CVE-2024-55636 affects drupal/core-recommended, drupal/core and drupal/drupal. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2024-55636 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-938f-5r4f-h65v
BIT-drupal-2024-55636
DRUPAL-CORE-2024-006

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