---
cve: "CVE-2026-82579"
severity: "MEDIUM"
cvss: 6.0
epss: "5.2%"
vendor: "ash-project"
kev: false
exploited: false
published: "2026-08-31 01:07:49"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T19:09:41+02:00"
---

# CVE-2026-82579

> 6.0 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- f72b14744996e71df6d73480d617d963f340597b (Commit)
- 53325fdab90afab628c6a53232ef2a9001580bd9 (Commit)

## Referenzen

- <https://github.com/ash-project/ash_ai/security/advisories/GHSA-rcx7-x2w5-mmc2>
- <https://cna.erlef.org/cves/CVE-2026-82579.html>
- <https://osv.dev/vulnerability/EEF-CVE-2026-82579>
- <https://github.com/ash-project/ash_ai/commit/53325fdab90afab628c6a53232ef2a9001580bd9>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-82579) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_