Vulnerability · Published Aug 31, 2026 · Assigned by EEF
CVE-2026-82580AshAi echoes raw tool exception messages into the conversation, disclosing internal details
Medium 5.3
In plain English
A medium-severity security flaw in ash_ai from ash-project. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Official description
Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_ai discloses internal error text to chat users. In AshAi.ToolLoop and AshAi.Tools, an exception raised while executing a tool was serialized verbatim with Exception.message/1 into the tool-result content. That content is appended to the conversation, emitted as a {:tool_result, ...} stream event, and sent back to the model, which typically relays it to the user. No filtering happened first, so anything raised inside a tool callback or lifecycle hook (database constraint messages, adapter errors, query fragments, policy or validation internals) was echoed as-is. A chat user who can steer tool arguments into a raising code path receives the raw internal text. The fix routes raised tool errors through the same safe formatter used for other tool errors. This issue affects ash_ai: from 0.6.0 before 1.0.0.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ash-project | ash_ai | 0.6.0 – before 1.0.0 |
| ash-project | ash_ai | bc2122f78fca6c11d8ec2b9ac53148ec17476460 – before c68dfbdb220426dc015b58379e95bde8e9f0995a |
Weakness: CWE-209 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
References
- https://github.com/ash-project/ash_ai/security/advisories/GHSA-5747-6mpw-6m9c vendor-advisory, related
- https://cna.erlef.org/cves/CVE-2026-82580.html related
- https://osv.dev/vulnerability/EEF-CVE-2026-82580 related
- https://github.com/ash-project/ash_ai/commit/c68dfbdb220426dc015b58379e95bde8e9f0995a patch