CVE-2026-55803 json
Drupal core - Critical - PHP object injection - SA-CORE-2026-005
published 2026-06-17 4 mo ago modified 2026-10-25 14 d ago also BIT-drupal-2026-55803 , DRUPAL-CORE-2026-005 , EUVD-2026-43081
- cvss
- 5.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Drupal core allows Object Injection. This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*.
Patch / fix
- bitnami drupal 10.5.12, 10.6.11, 11.2.14, 11.3.12
- packagist drupal/core 10.5.12, 10.6.11, 11.1.0, 11.2.0, 11.2.14, 11.3.12
- Drupal Drupal core 10.5.12, 10.6.11, 11.2.14, 11.3.12
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 3 mo ago
Exploit prediction
0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N |
| CNA | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N |
| OSV | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | drupal | <10.5.12 >=10.6.0, <10.6.11 >=11.0.0, <11.2.14 >=11.3.0, <11.3.12 |
10.5.12 10.6.11 11.2.14 11.3.12 |
| packagist | drupal/core | <10.5.12 >=10.6.0, <10.6.11 >=11.2.0, <11.2.14 >=11.3.0, <11.3.12 >=11.0.0, <11.1.0 >=11.1.0, <11.2.0 |
10.5.12 10.6.11 11.2.14 11.3.12 11.1.0 11.2.0 |
Affected products
- Drupal Drupal core
Classification
- Weakness
-
- CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes
References
-
drupal.org
/sa-core-2026-005
vendor-advisory, advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-55803
web
Sources
- CVE List CVE-2026-55803
- NVD CVE-2026-55803
- OSV BIT-drupal-2026-55803
- OSV DRUPAL-CORE-2026-005
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