EUVD-2026-68944Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network vector reflects typical Phoenix/HTTP exposure; AC:H maps to AT:P three-condition requirement; PR:N per vendor vector; low confidentiality only.
Primary rating from Vendor (EEF).
CVSS VectorVendor: EEF
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Sensitive field value disclosure in Ash Framework's atomic confirmation validator allows any caller of a vulnerable action to extract a stored sensitive attribute by intentionally submitting a wrong confirmation argument. Versions 2.17.20 through before 3.32.2 of ash-project/ash are affected: when an actor supplies only the confirmation argument and omits the field itself, the atomic Confirm validator resolves the mismatch error's value through atomic_ref/2 to the field's current stored database value and returns it in the error payload. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | All three of the following conditions must be present simultaneously: (1) the Ash action must be configured with `require_atomic? … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 2.1 (AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N) is consistent with the narrow, condition-dependent nature of the flaw. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade ash-project/ash to version 3.32.2 or later, which contains the fix introduced in commit 7dfe5f0b1ba4267580ded947dc861351d4dc8e2b (https://github.com/ash-project/ash/commit/7dfe5f0b1ba4267580ded947dc861351d4dc8e2b) and documented in the advisory at https://github.com/ash-project/ash/security/advisories/GHSA-66cg-vj5m-8w7v. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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