Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash discloses the stored value of a confirmed field to an actor who fails its confirmation check.

Ash.Resource.Validation.Confirm's atomic implementation (atomic/2 in lib/ash/resource/validation/confirm.ex) built the mismatch error with its value set to the field being confirmed. When the actor supplies only the confirmation argument and not the field itself, value resolves through atomic_ref/2 to the field's current stored value, so the mismatch error echoes that stored value back to the actor. Against a confirmation guarding a sensitive attribute, an actor can submit a deliberately wrong confirmation and read the real value from the returned error. The fix reports the actor-supplied confirmation in the error instead of the stored field value.

This issue affects ash: from 2.17.20 before 3.32.2.

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History

Tue, 01 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 01 Sep 2026 03:45:00 +0000

Type Values Removed Values Added
Description Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash discloses the stored value of a confirmed field to an actor who fails its confirmation check. Ash.Resource.Validation.Confirm's atomic implementation (atomic/2 in lib/ash/resource/validation/confirm.ex) built the mismatch error with its value set to the field being confirmed. When the actor supplies only the confirmation argument and not the field itself, value resolves through atomic_ref/2 to the field's current stored value, so the mismatch error echoes that stored value back to the actor. Against a confirmation guarding a sensitive attribute, an actor can submit a deliberately wrong confirmation and read the real value from the returned error. The fix reports the actor-supplied confirmation in the error instead of the stored field value. This issue affects ash: from 2.17.20 before 3.32.2.
Title Ash.Resource.Validation.Confirm leaks a confirmed field's stored value in the atomic mismatch error
First Time appeared Ash-project
Ash-project ash
Weaknesses CWE-209
CPEs cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*
Vendors & Products Ash-project
Ash-project ash
References
Metrics cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: EEF

Published:

Updated: 2026-09-01T12:44:21.482Z

Reserved: 2026-08-31T00:59:10.002Z

Link: CVE-2026-82739

cve-icon Vulnrichment

Updated: 2026-09-01T12:44:16.753Z

cve-icon NVD

Status : Received

Published: 2026-09-01T04:18:03.580

Modified: 2026-09-01T13:20:03.813

Link: CVE-2026-82739

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-01T05:00:06Z

Weaknesses