CVE-2026-12535
Formatter Field - Critical - PHP object injection - SA-CONTRIB-2026-048
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Formatter Field allows Object Injection. This issue affects Formatter Field versions: from 0.0.0 to 2.0.0.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Formatter Field - Critical - PHP object injection - SA-CONTRIB-2026-048
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Formatter Field allows Object Injection. This issue affects Formatter Field versions: from 0.0.0 to 2.0.0.
- Record
CVE-2026-12535- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-915
- Updated
- 2026-11-02
EUVDEUVD-2026-43051
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Formatter Field allows Object Injection. This issue affects Formatter Field versions: from 0.0.0 to 2.0.0.
- Record
EUVD-2026-43051- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-qc2r-2xxp-m58x
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in...
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Formatter Field allows Object Injection. This issue affects Formatter Field versions: from 0.0.0 to 2.0.0.
- Record
GHSA-qc2r-2xxp-m58x- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-915
- Updated
- 2026-11-02
NVD
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Formatter Field allows Object Injection. This issue affects Formatter Field versions: from 0.0.0 to 2.0.0.
- Record
CVE-2026-12535- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-915
- Updated
- 2026-11-02
OSV
Formatter Field - Critical - PHP object injection - SA-CONTRIB-2026-048
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Formatter Field allows Object Injection. This issue affects Formatter Field versions: from 0.0.0 to 2.0.0.
- Record
CVE-2026-12535- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-915
- Updated
- 2026-11-02
OSVDRUPAL-CONTRIB-2026-048 No score
The Formatter Field module provides a mechanism for specifying a formatter and formatter settings to be used for displaying a field, on a per-entity basis.
formatter_field stores some data as PHP-serialized strings. In some situations, malicious data can be written directly to the field. This can lead to an Object Injection vulnerability when the data are unserialized.
This vulnerability is mitigated by the fact that an attacker must have permission to edit a content entity with an attached formatter_field field. In addition, the core JSON:API module must be enabled with the option "Accept all JSON:API create, read, update, and delete operations", which is not the default, or the attacker needs some other way to edit field values directly.
- Record
DRUPAL-CONTRIB-2026-048- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
drupal/formatter_fieldPackagist:https://packages.drupal.org/8 |
before 2.0.0 | 2.0.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-12535 is a critical vulnerability (CVSS 9.8) in Drupal Formatter Field, published June 17, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 47th percentile. Fixed in drupal/formatter_field 2.0.0.