Low 2.1Published Aug 9, 2026

CVE-2026-70395Predicate injection in manage_relationship belongs_to lookup discloses secret lookup keys in Ash

Updated under an hour ago (2026-10-19 10:50 UTC)

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It affects ash-project ash. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for ash-project ash

Exploited in the last 30 days

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.

CVSS: 2.1 LOW (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-943
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: EEF
NVD analysis: Awaiting Analysis
Record last updated: Aug 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ash-project ash ash-project:ash	from 1.52.0-rc.11 before 3.31.1	CNA record

References

https://github.com/ash-project/ash/security/advisories/GHSA-vvp6-3wv6-833jrelated, vendor-advisory
https://cna.erlef.org/cves/CVE-2026-70395.htmlrelated
https://osv.dev/vulnerability/EEF-CVE-2026-70395related
https://github.com/ash-project/ash/commit/09f42593035bceb0f6153dd7ee45cc49d108300apatch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.