---
cve: "CVE-2026-78228"
severity: "MEDIUM"
cvss: 5.9
epss: "6.1%"
vendor: "ash-project"
kev: false
exploited: false
published: "2026-08-30 12:17:18"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T01:27:29+02:00"
---

# CVE-2026-78228

> 5.9 MEDIUM · 🧪 PoC

## Beschreibung

Uncontrolled Recursion vulnerability in ash-project ash_oban allows a user who can drive a trigger's on_error action to fail on the final attempt to exhaust worker CPU and memory, denying service.

The generated worker's atomic handle_error/4 runs the trigger's on_error action on a job's final attempt inside a rescue that, when the action itself raises, calls handle_error/4 again with the same job. The job's attempt still equals max_attempts, so it re-enters the same clause and re-runs the failing action, with no exit. Any deterministic on_error failure (a data-layer outage, a misconfigured action, or a record the action rejects) loops forever; because the recursive call is not in tail position, each iteration retains a formatted stacktrace and the process heap grows without bound while the failing statement is re-issued against the data layer until the runtime kills the worker.

This issue affects ash_oban: from 0.8.0-rc.1 before 0.8.14.

## CVSS-Vektor

```
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
```

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

## Patch verfügbar (OSV)

- d918a299d73ac9f0d85e55b8533ddb4801a3af2d (Commit)
- 851cd0e76ed882bf736fc48d10f96d037e26b5f0 (Commit)

## Referenzen

- <https://github.com/ash-project/ash_oban/security/advisories/GHSA-94p7-498r-mrhp>
- <https://cna.erlef.org/cves/CVE-2026-78228.html>
- <https://osv.dev/vulnerability/EEF-CVE-2026-78228>
- <https://github.com/ash-project/ash_oban/commit/851cd0e76ed882bf736fc48d10f96d037e26b5f0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-78228) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_