Read the docs
TI-2026-56922 Aliases CVE-2026-82579

AshAi tool loop never terminates when all tool calls are filtered out, enabling denial of service

Priority MEDIUM 60CWE-835Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-835.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00466 40th percentileScored 2026-11-07
Fix Fixed ash_ai (ash-project): 1.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ash-projectash_ai0.6.0 to before 1.0.01.0.0Patch availableCNA
  • ash_ai Vendorash-project Affected 0.6.0 to before 1.0.0 Fixed in 1.0.0 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:ash-project:ash_ai:*:*:*:*:*:*:*:*———
  • cpe:2.3:a:ash-project:ash_ai:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

  • Fix · CNA ash_ai (ash-project) Fixed in 1.0.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    ash-project ash_ai 1.0.0

    6 records Highest priority Priority HIGH 2 HIGH, 4 MEDIUM

    Other records, highest priority first

    • TI-2026-54252 EEx template evaluation of prompt content in AshAi enables remote code executionPriority HIGH 74
    • TI-2026-56145 MCP DNS-rebinding origin check in AshAi is bypassed by a spoofed X-Forwarded-Proto headerPriority HIGH 68
    • TI-2026-56918 Identity tool filter in AshAi accepts operator maps, allowing update or destroy of unidentified recordsPriority MEDIUM 64
    Show all 6 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-82579

References

Patch 1

Advisory 1

Other 2

  • TI-2026-56298 Query-complexity limit bypass via first/last pagination arguments in AshGraphql enables denial of service CVSS 4.0HIGH 8.7
  • TI-2026-52572 Unbounded atom creation from client-supplied RPC field names in AshTypescript field formatter CVSS 4.0HIGH 8.7
  • TI-2026-57010 Path traversal in AshAdmin file uploads via unsanitized client filename CVSS 4.0HIGH 8.3
  • TI-2026-26840 Ash Framework: Ash.Type.Module.cast_input/2 atom exhaustion via unchecked Module.concat allows BEAM VM crash CVSS 4.0HIGH 8.2
  • TI-2026-54252 EEx template evaluation of prompt content in AshAi enables remote code execution CVSS 4.0HIGH 8.9
  • TI-2026-54208 Stored XSS in AshAdmin relationship typeahead via unescaped label_field content CVSS 4.0HIGH 8.4
See all 90 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences