ash-project ash_ai up to 0.9.x Tool Loop AshAi.ToolLoop infinite loop

Summaryinfo

A vulnerability, which was classified as problematic, was found in ash-project ash_ai up to 0.9.x. Affected by this vulnerability is the function AshAi.ToolLoop of the component Tool Loop. Executing a manipulation can lead to infinite loop. This vulnerability is registered as CVE-2026-82579. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability has been found in ash-project ash_ai up to 0.9.x and classified as problematic. This vulnerability affects the function AshAi.ToolLoop of the component Tool Loop. The manipulation with an unknown input leads to a infinite loop vulnerability. The CWE definition for the vulnerability is CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. As an impact it is known to affect availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2026-82579 since 08/30/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Project Management Software

Vendor

• ash-project

Name

• ash_ai

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9

Website

• Product: https://github.com/ash-project/ash_ai/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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