{"api_version":"1","generated_at":"2026-09-11T03:19:46+00:00","cve":"CVE-2026-82739","urls":{"html":"https://cve.report/CVE-2026-82739","api":"https://cve.report/api/cve/CVE-2026-82739.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-82739","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-82739"},"summary":{"title":"Ash.Resource.Validation.Confirm leaks a confirmed field's stored value in the atomic mismatch error","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.\n\nAsh.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. 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Männchen / EEF"},{"lang":"en","type":"reporter","value":"Peter Ullrich"},{"lang":"en","type":"remediation developer","value":"Zach Daniel / Ash Project"},{"lang":"en","type":"finder","value":"Peter Ullrich"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>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.</p>\n<p><code>Ash.Resource.Validation.Confirm</code>'s atomic implementation (<code>atomic/2</code> in <code>lib/ash/resource/validation/confirm.ex</code>) built the mismatch error with its <code>value</code> set to the field being confirmed. When the actor supplies only the confirmation argument and not the field itself, <code>value</code> resolves through <code>atomic_ref/2</code> 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.</p>\n<p>This issue affects ash: from 2.17.20 before 3.32.2.</p>"},{"base64":false,"type":"text/markdown","value":"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.\n\n`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. 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The fix reports the actor-supplied confirmation in the error instead of the stored field value.\n\nThis issue affects ash: from 2.17.20 before 3.32.2."}],"impacts":[{"capecId":"CAPEC-54","descriptions":[{"lang":"en","value":"CAPEC-54 Query System for Information"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":2.1,"baseSeverity":"LOW","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-209","description":"CWE-209 Generation of Error Message Containing Sensitive Information","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-09-01T03:27:58.165Z","orgId":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db","shortName":"EEF"},"references":[{"tags":["vendor-advisory","related"],"url":"https://github.com/ash-project/ash/security/advisories/GHSA-66cg-vj5m-8w7v"},{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-82739.html"},{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-82739"},{"tags":["patch"],"url":"https://github.com/ash-project/ash/commit/7dfe5f0b1ba4267580ded947dc861351d4dc8e2b"}],"source":{"discovery":"EXTERNAL"},"title":"Ash.Resource.Validation.Confirm leaks a confirmed field's stored value in the atomic mismatch error"}},"cveMetadata":{"assignerOrgId":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db","assignerShortName":"EEF","cveId":"CVE-2026-82739","datePublished":"2026-09-01T03:27:58.165Z","dateReserved":"2026-08-31T00:59:10.002Z","dateUpdated":"2026-09-01T12:44:21.482Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-01 04:18:03","lastModifiedDate":"2026-09-01 21:15:00","problem_types":["CWE-209","CWE-209 CWE-209 Generation of Error Message Containing Sensitive Information"],"metrics":{"cvssMetricV40":[{"source":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db","type":"Secondary","cvssData":{"version":"4.0","vectorString":"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","baseScore":2.1,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-09-01T12:43:57.417588Z","id":"CVE-2026-82739","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"82739","Ordinal":"1","Title":"Ash.Resource.Validation.Confirm leaks a confirmed field's stored","CVE":"CVE-2026-82739","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"82739","Ordinal":"1","NoteData":"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.\n\nAsh.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. 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