Shield - Moderately critical - Access bypass - SA-CONTRIB-2026-248
Summary
| CVE | CVE-2026-107256 |
|---|---|
| State | PUBLISHED |
| Assigner | drupal |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-30 04:17:52 UTC |
| Updated | 2026-11-06 14:17:06 UTC |
| Description | Improper Restriction of Excessive Authentication Attempts vulnerability in Drupal Shield allows Brute Force. This issue affects Shield versions: from 0.0.0 to 1.9.0. |
Risk And Classification
Primary CVSS: v3.1 5.3 MEDIUM from ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.001820000 probability, percentile 0.078020000 (date 2026-11-06)
Problem Types: CWE-307 | CWE-307 CWE-307 Improper Restriction of Excessive Authentication Attempts
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | ADP | DECLARED | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| 3.1 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.drupal.org/sa-contrib-2026-248 | [email protected] | www.drupal.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Pierre Rudloff (prudloff) (en)
CNA: Bram Driesen (bramdriesen) (en)
CNA: Merlin Axel Rutz (geek-merlin) (en)
CNA: Jakob P (japerry) (en)
CNA: Ivo Van Geertruyen (mr.baileys) (en)
CNA: Ra Mänd (ram4nd) (en)
CNA: Swan Kalata (akalata) (en)
CNA: Greg Knaddison (greggles) (en)
CNA: Juraj Nemec (poker10) (en)
CNA: Pierre Rudloff (prudloff) (en)
There are currently no legacy QID mappings associated with this CVE.