Drupal core: Improper Control of Dynamically-Managed Code Resources
CVE-2025-31674 is a high-severity improper control of dynamically-managed code resources vulnerability in Drupal core from Drupal, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists versions 10.3.13, 10.4.3, 11.0.12 as the first without the flaw, so updating Drupal core to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.6% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Drupal core to 10.3.13 or 10.4.3 or 11.0.12 or 11.1.3, whichever matches your release line, or a later version.
- Update Drupal to 10.3.13 or 10.4.3 or 11.0.12 or 11.1.3, whichever matches your release line, or a later version.
- Read the advisory on drupal.org for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Drupal | Drupal core | 8.0.0 up to, but not including, 10.3.13; 10.4.0 up to, but not including, 10.4.3; 11.0.0 up to, but not including, 11.0.12; 11.1.0 up to, but not including, 11.1.3 | 10.3.13, 10.4.3, 11.0.12, 11.1.3 |
| Drupal | Drupal | 8.0.0 up to, but not including, 10.3.13; 10.4.0 up to, but not including, 10.4.3; 11.0.0 up to, but not including, 11.0.12; 11.1.0 up to, but not including, 11.1.3 | 10.3.13, 10.4.3, 11.0.12, 11.1.3 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by CISA (ADP).
Official description
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Drupal core allows Object Injection.This issue affects Drupal core: from 8.0.0 before 10.3.13, from 10.4.0 before 10.4.3, from 11.0.0 before 11.0.12, from 11.1.0 before 11.1.3.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Control of Dynamically-Managed Code Resources
The product does not properly restrict reading from or writing to dynamically-managed code resources such as variables, objects, classes, attributes, functions, or executable instructions or statements.
How developers prevent this class of flaw
- For any externally-influenced input, check the input against an allowlist of acceptable values.
- Refactor the code so that it does not need to be dynamically managed.
More Improper Control of Dynamically-Managed Code Resources vulnerabilities (CWE-913)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in Drupal core
- 8.1 High severity
- 9.8 Critical severity
Drupal Core SQL Injection Exploited
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
- 8.1 High severity
Recent Improper Control of Dynamically-Managed Code Resources vulnerabilities
- 9.8 Critical severity
- 8.5 High severity
- 8.8 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 7.8 High severity
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