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CVE-2026-82579— AshAi tool loop never terminates when all tool calls are filtered out, enabling denial of service

Quick assessment

Affected
ash-project ash_ai
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ash Framework Ash AI是Ash Framework组织的一款机器学习产品。 Ash Framework Ash AI 0.6.0版本至1.0.0之前版本存在资源管理错误漏洞，该漏洞源于对模型响应中工具调用的过滤处理不完善，可能导致无限循环，造成工具循环挂起和无界重复请求。

CVSS 6.0 · Medium EPSS 0.47% · P39

Affected Version Matrix 2

VendorProduct Version RangeStatus
ash-project ash_ai 0.6.0< 1.0.0 affected
bc2122f78fca6c11d8ec2b9ac53148ec17476460< 53325fdab90afab628c6a53232ef2a9001580bd9 affected
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I. Basic Information for CVE-2026-82579

Vulnerability Information
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Vulnerability Title
AshAi tool loop never terminates when all tool calls are filtered out, enabling denial of service
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5
Vulnerability Title
Ash Framework Ash AI 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ash Framework Ash AI是Ash Framework组织的一款机器学习产品。 Ash Framework Ash AI 0.6.0版本至1.0.0之前版本存在资源管理错误漏洞，该漏洞源于对模型响应中工具调用的过滤处理不完善，可能导致无限循环，造成工具循环挂起和无界重复请求。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ash-project ash_ai 0.6.0 ~ 1.0.0 cpe:2.3:a:ash-project:ash_ai:*:*:*:*:*:*:*:*
ash-project ash_ai bc2122f78fca6c11d8ec2b9ac53148ec17476460 ~ 53325fdab90afab628c6a53232ef2a9001580bd9 cpe:2.3:a:ash-project:ash_ai:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-82579

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III. Intelligence Information for CVE-2026-82579

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Patches & Fixes for CVE-2026-82579 (1)

Vendor Advisories for CVE-2026-82579 (3)

Same Patch Batch · ash-project · 2026-08-31 · 17 CVEs total

CVE-2026-77956 8.9 HIGH EEx template evaluation of prompt content in AshAi enables remote code execution
CVE-2026-77850 8.4 HIGH Stored XSS in AshAdmin relationship typeahead via unescaped label_field content
CVE-2026-75757 8.3 HIGH AshAdmin cookie reader matches names by substring, enabling actor/session shadowing from a
CVE-2026-82722 8.3 HIGH AshAdmin LiveView events intern atoms from client input, exhausting the atom table (node D
CVE-2026-82673 8.3 HIGH Path traversal in AshAdmin file uploads via unsanitized client filename
CVE-2026-82724 7.6 HIGH Broken access control in AshPhoenix SubdomainHook via a nil tenant in handle_subdomain
CVE-2026-81315 7.4 HIGH MCP DNS-rebinding origin check in AshAi is bypassed by a spoofed X-Forwarded-Proto header
CVE-2026-75760 7.1 HIGH AshAi vectorize change leaks raw embedding-provider errors, including credentials, in a us
CVE-2026-82564 7.1 HIGH Identity tool filter in AshAi accepts operator maps, allowing update or destroy of unident
CVE-2026-82726 6.3 MEDIUM AshPhoenix get_subdomain maps a crafted or differently-cased Host header to an arbitrary t
CVE-2026-82580 5.3 MEDIUM AshAi echoes raw tool exception messages into the conversation, disclosing internal detail
CVE-2026-81853 2.3 LOW AshAdmin composite primary key decoding accepts arbitrary fields, enabling a secret-attrib
CVE-2026-82725 2.3 LOW AshPhoenix FilterForm allows filtering across non-public relationships, disclosing private
CVE-2026-82727 2.3 LOW AshPhoenix Form.Auto leaks submitted params in an unknown _union_type error message
CVE-2026-81852 2.1 LOW AshAdmin ships a hardcoded CSP nonce, allowing nonce-based CSP bypass
CVE-2026-82681 2.0 LOW Query-parameter injection in AshAdmin row-action links via unencoded string primary keys

IV. Related Vulnerabilities

Same product: ash_ai
Same vendor: ash-project
Same weakness: CWE-835

V. Comments for CVE-2026-82579

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