---
cve: "CVE-2026-78693"
severity: "MEDIUM"
cvss: 6.9
epss: "5.2%"
vendor: "ash-project"
kev: false
exploited: false
published: "2026-08-30 19:17:28"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-08-31T19:31:46+02:00"
---

# CVE-2026-78693

> 6.9 MEDIUM · 🧪 PoC

## Beschreibung

Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_graphql allows a remote client to read internal field names that an application configured its error_handler to redact.

In AshGraphql.Errors, each error is passed to the configured error_handler and the returned map is merged with the pre-handler path via Map.put_new(handled, :path, path). Because put_new defers to the handler only when the handler itself set :path, a sanitizing handler that returns a fresh map or deletes :path has that decision reverted. The re-injected path comes from build_error_path/5, which falls back to raw internal Ash attribute and argument names when no field_names mapping is configured. A validation failure on a non-exposed or nested field therefore returns internal names in the GraphQL error path, defeating the application's redaction.

This issue affects ash_graphql: from 1.9.0 before 1.11.0.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 4e2c5476ecfd2c701488627ee46e6eefc58c982e (Commit)

## Referenzen

- <https://github.com/ash-project/ash_graphql/security/advisories/GHSA-ppr2-g9h8-w7qp>
- <https://cna.erlef.org/cves/CVE-2026-78693.html>
- <https://osv.dev/vulnerability/EEF-CVE-2026-78693>
- <https://github.com/ash-project/ash_graphql/commit/78e90d369f09f44c534816de541e60841066a467>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-78693) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_