CVE-2026-82564 Identity tool filter in AshAi accepts operator maps, allowing update or destroy of unidentified records
Attackers can bypass identity checks to modify or delete arbitrary records by manipulating filter arguments in AshAi tools.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-82564?
CVE-2026-82564 is a high-severity missing authorization vulnerability in ash-project ash_ai, published on 31 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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": "<own-ref>"}} 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.
Weakness: CWE-639
Which versions are affected by CVE-2026-82564?
1 open source package ship an affected version, including ash_ai.
| Package | Affected | Fixed in |
|---|---|---|
ash_ai Hex | From 0.6.0 | 1.0.0 |
How do I fix CVE-2026-82564?
Upgrade ash_ai to 1.0.0 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-82564 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82564 exists.
Sources
Also known as EEF-CVE-2026-82564, GHSA-jg86-xh36-h5xc.