Description (CNA)
Improper Input Validation vulnerability in ash-project ash fails to enforce the outer array constraints on a doubly-nested {:array, {:array, type}} attribute, letting invalid input pass validation. Ash.Type.apply_constraints/3 (lib/ash/type/type.ex) handled the {:array, {:array, type}} case by mapping only the inner {:array, type} constraints over each element, so constraints declared on the outer array (such as min_length, max_length, and nil_items?) were never applied. An attacker could submit an outer list that violates those constraints (too many elements, or nil entries where disallowed) and have it accepted and persisted. The fix enforces the outer array constraints and adds explicit handling for nil and non-list inputs. This issue affects ash: from 2.16.1 before 3.32.2.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| ash-project / ash | affected 2.16.1 before 3.32.2 |
| ash-project / ash | affected 7b50a401d85018371659e51c34c89d7e1d0c2ac9 before c85ccff7dc6e3b0b3e40ad788b0056b3b6bee5ce |
CWE
CWE-20
References
- https://github.com/ash-project/ash/security/advisories/GHSA-v29m-p28g-w5fc
- https://cna.erlef.org/cves/CVE-2026-82740.html
- https://osv.dev/vulnerability/EEF-CVE-2026-82740
- https://github.com/ash-project/ash/commit/c85ccff7dc6e3b0b3e40ad788b0056b3b6bee5ce
ADP enrichment
No English description supplied.