Ash Project prior 3.31.1 Data Query Logic Ash.Query.filter neutralization

Summaryinfo

A vulnerability was found in Ash Project Ash. It has been classified as critical. Affected is the function Ash.Query.filter of the component Data Query Logic. The manipulation leads to neutralization. This vulnerability is uniquely identified as CVE-2026-70395. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Ash Project Ash. It has been rated as critical. This issue affects the function Ash.Query.filter of the component Data Query Logic. The manipulation with an unknown input leads to a neutralization vulnerability. Using CWE to declare the problem leads to CWE-707. The product does not ensure or incorrectly ensures that structured messages or data are well-formed and that certain security properties are met before being read from an upstream component or sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Improper Neutralization of Special Elements in Data Query Logic vulnerability in ash-project ash allows an attacker to forge a relationship to a record they cannot name, and to recover the secret value used to look it up. When manage_relationship is used with on_lookup: :relate on a belongs_to relationship, the client-supplied lookup value is passed to Ash.Query.filter/2 without being cast to the attribute type. A nested map submitted where a scalar is expected is therefore interpreted as a filter predicate rather than a literal, so a lookup for a specific record becomes a query for any record matching a condition. The same path omits Ash.Query.limit(1), leaving Ash.read_one/2 able to distinguish no match from one match from several, which turns comparison predicates into an oracle for the lookup value. Authorization is unaffected; the destination read policy still applies. This issue affects ash: from 1.52.0-rc.11 before 3.31.1.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-70395 since 08/04/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 3.31.1 eliminates this vulnerability.

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Productinfo

Type

• Project Management Software

Vendor

• Ash Project

Name

• Ash

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CPE 2.2info

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