---
cve: "CVE-2026-82564"
severity: "HIGH"
cvss: 7.1
epss: "20.8%"
vendor: "ash-project"
kev: false
exploited: false
published: "2026-08-31 02:17:02"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-02T11:55:29+02:00"
---

# CVE-2026-82564

> 7.1 HIGH · 🧪 PoC

## Beschreibung

Authorization Bypass Through User-Controlled Key vulnerability in ash-project ash_ai allows a caller of an identity-configured tool to update or destroy records it never identified, including every row in the table.

In AshAi.Tool.Execution, identity_filter/3 built the update/destroy filter directly from the raw tool arguments as [{key, Map.get(arguments, to_string(key))}] and passed it to Ash.Query.do_filter/2. A map value is parsed as a predicate expression rather than a literal, so a caller can send {"public_ref": {"not_eq": ""}} and, combined with Ash.Query.limit(1) and Ash.bulk_update!/Ash.bulk_destroy!, retarget the write at a record it never identified; an omitted key yields an IS NULL filter that matches an arbitrary row. The fix casts each identity value to the field type, rejecting non-scalar inputs.

This issue affects ash_ai: from 0.6.0 before 1.0.0.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- f72b14744996e71df6d73480d617d963f340597b (Commit)
- 87f616d5bfbf7af43346f0701ae17f853789a602 (Commit)

## Referenzen

- <https://github.com/ash-project/ash_ai/security/advisories/GHSA-jg86-xh36-h5xc>
- <https://cna.erlef.org/cves/CVE-2026-82564.html>
- <https://osv.dev/vulnerability/EEF-CVE-2026-82564>
- <https://github.com/ash-project/ash_ai/commit/87f616d5bfbf7af43346f0701ae17f853789a602>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-82564) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_