---
id: CVE-2026-78693
title: >-
  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, …
summary: >-
  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, …
severity: none
cwe:
  - CWE-209
published: '2026-08-30'
updated: '2026-08-30'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-78693'
references:
  - url: 'https://cna.erlef.org/cves/CVE-2026-78693.html'
    label: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
  - url: >-
      https://github.com/ash-project/ash_graphql/commit/78e90d369f09f44c534816de541e60841066a467
    label: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
  - url: >-
      https://github.com/ash-project/ash_graphql/security/advisories/GHSA-ppr2-g9h8-w7qp
    label: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
  - url: 'https://osv.dev/vulnerability/EEF-CVE-2026-78693'
    label: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
tags:
  - nvd
ingestedAt: '2026-08-31T02:00:58.015Z'
epss: 0.00301
epssPercentile: 0.23044
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.