AshAi.ToolLoop classifies a model response of :tool_calls, then filters the calls through normalize_tool_calls/2 and unprocessed_tool_calls/2. Both can empty the list: a call missing a valid name, or one reusing a tool_call_id that already has a result in history, is dropped. With an empty list the loop appended nothing and recursed with a byte-identical message list, so the conversation never advanced and the same request was re-sent every iteration. Under the supported max_iterations: :infinity this never terminated; otherwise it exhausted the full budget. Prompt-injected content can make the model re-emit a spent tool_call_id. The fix treats an empty post-filter list as terminal.
This issue affects ash_ai: from 0.6.0 before 1.0.0.
Metrics
Affected Vendors & Products
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Mon, 31 Aug 2026 17:30:00 +0000
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| Metrics |
ssvc
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Mon, 31 Aug 2026 01:45:00 +0000
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| Description | Loop with Unreachable Exit Condition (Infinite Loop) vulnerability in ash-project ash_ai allows an attacker who can influence a model's output to hang the tool loop and drive unbounded, repeated model requests. AshAi.ToolLoop classifies a model response of :tool_calls, then filters the calls through normalize_tool_calls/2 and unprocessed_tool_calls/2. Both can empty the list: a call missing a valid name, or one reusing a tool_call_id that already has a result in history, is dropped. With an empty list the loop appended nothing and recursed with a byte-identical message list, so the conversation never advanced and the same request was re-sent every iteration. Under the supported max_iterations: :infinity this never terminated; otherwise it exhausted the full budget. Prompt-injected content can make the model re-emit a spent tool_call_id. The fix treats an empty post-filter list as terminal. This issue affects ash_ai: from 0.6.0 before 1.0.0. | |
| Title | AshAi tool loop never terminates when all tool calls are filtered out, enabling denial of service | |
| First Time appeared |
Ash-project
Ash-project ash Ai |
|
| Weaknesses | CWE-835 | |
| CPEs | cpe:2.3:a:ash-project:ash_ai:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Ash-project
Ash-project ash Ai |
|
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: EEF
Published:
Updated: 2026-08-31T16:05:58.542Z
Reserved: 2026-08-30T20:00:01.852Z
Link: CVE-2026-82579
Updated: 2026-08-31T16:05:53.304Z
Status : Received
Published: 2026-08-31T02:17:02.270
Modified: 2026-08-31T16:19:16.967
Link: CVE-2026-82579
No data.
OpenCVE Enrichment
Updated: 2026-08-31T02:30:18Z