Description
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.
Published: 2026-08-30
Score: 6.9 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Sun, 30 Aug 2026 18:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Incomplete redaction re-attaches the original error path in AshGraphql, leaking internal field names
First Time appeared Ash-project
Ash-project ash Graphql
Weaknesses CWE-209
CPEs cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*
Vendors & Products Ash-project
Ash-project ash Graphql
References
Metrics cvssV4_0

{'score': 6.9, 'vector': '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'}


Subscriptions

Ash-project Ash Graphql
cve-icon MITRE

Status: PUBLISHED

Assigner: EEF

Published:

Updated: 2026-08-30T18:28:35.282Z

Reserved: 2026-08-30T15:30:02.101Z

Link: CVE-2026-78693

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-30T19:17:28.620

Modified: 2026-08-30T19:17:28.620

Link: CVE-2026-78693

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-30T20:00:06Z

Weaknesses