{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-82745", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-08-31T01:00:09.774Z", "datePublished": "2026-09-01T03:42:28.309Z", "dateUpdated": "2026-09-01T15:16:38.003Z" }, "containers": { "cna": { "affected": [ { "collectionURL": "https://repo.hex.pm", "cpes": [ "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*" ], "defaultStatus": "unaffected", "modules": [ "'Elixir.Ash.DataLayer.Ets'", "'Elixir.Ash.DataLayer.Mnesia'" ], "packageName": "ash", "packageURL": "pkg:hex/ash", "product": "ash", "programFiles": [ "lib/ash/data_layer/ets/ets.ex", "lib/ash/data_layer/mnesia/mnesia.ex" ], "programRoutines": [ { "name": "'Elixir.Ash.DataLayer.Ets':create/2" }, { "name": "'Elixir.Ash.DataLayer.Mnesia':create/2" } ], "repo": "https://github.com/ash-project/ash", "vendor": "ash-project", "versions": [ { "lessThan": "3.32.2", "status": "affected", "version": "0.4.0", "versionType": "semver" } ] }, { "collectionURL": "https://github.com", "cpes": [ "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*" ], "defaultStatus": "unaffected", "modules": [ "'Elixir.Ash.DataLayer.Ets'", "'Elixir.Ash.DataLayer.Mnesia'" ], "packageName": "ash-project/ash", "packageURL": "pkg:github/ash-project/ash", "product": "ash", "programFiles": [ "lib/ash/data_layer/ets/ets.ex", "lib/ash/data_layer/mnesia/mnesia.ex" ], "programRoutines": [ { "name": "'Elixir.Ash.DataLayer.Ets':create/2" }, { "name": "'Elixir.Ash.DataLayer.Mnesia':create/2" } ], "repo": "https://github.com/ash-project/ash", "vendor": "ash-project", "versions": [ { "lessThan": "912e243196017c2a812c25905c2b1cc3bbb843fc", "status": "affected", "version": "6dc699d8a683d542812b34a8c104cc90164add3a", "versionType": "git" } ] } ], "cpeApplicability": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*", "versionEndExcluding": "3.32.2", "versionStartIncluding": "0.4.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ], "operator": "AND" } ], "credits": [ { "lang": "en", "type": "coordinator", "value": "Jonatan Männchen / EEF" }, { "lang": "en", "type": "reporter", "value": "Peter Ullrich" }, { "lang": "en", "type": "finder", "value": "Peter Ullrich" }, { "lang": "en", "type": "remediation developer", "value": "Zach Daniel / Ash Project" } ], "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "

Improper Access Control vulnerability in ash-project ash lets a create action overwrite an existing record when the ETS or Mnesia data layer is used, because neither enforced primary-key uniqueness on insert.

\n

Unlike a SQL data layer, whose unique primary-key constraint rejects a duplicate, the ETS and Mnesia data layers implemented create as a keyed insert that replaces any existing entry with the same primary key (lib/ash/data_layer/ets/ets.ex, lib/ash/data_layer/mnesia/mnesia.ex). An actor who can set the primary key on a create (for example a user-supplied string or integer key) can submit a create whose key matches an existing record and silently overwrite it, destroying and replacing another entity's data without going through the update action or its policies. The fix rejects a create whose primary key already exists with an already-taken error, and only allows duplicates for keyless resources.

\n

This issue affects ash: from 0.4.0 before 3.32.2.

" }, { "base64": false, "type": "text/markdown", "value": "Improper Access Control vulnerability in ash-project ash lets a create action overwrite an existing record when the ETS or Mnesia data layer is used, because neither enforced primary-key uniqueness on insert.\n\nUnlike a SQL data layer, whose unique primary-key constraint rejects a duplicate, the ETS and Mnesia data layers implemented `create` as a keyed insert that replaces any existing entry with the same primary key (`lib/ash/data_layer/ets/ets.ex`, `lib/ash/data_layer/mnesia/mnesia.ex`). An actor who can set the primary key on a create (for example a user-supplied string or integer key) can submit a create whose key matches an existing record and silently overwrite it, destroying and replacing another entity's data without going through the update action or its policies. The fix rejects a create whose primary key already exists with an already-taken error, and only allows duplicates for keyless resources.\n\nThis issue affects ash: from 0.4.0 before 3.32.2." } ], "value": "Improper Access Control vulnerability in ash-project ash lets a create action overwrite an existing record when the ETS or Mnesia data layer is used, because neither enforced primary-key uniqueness on insert.\n\nUnlike a SQL data layer, whose unique primary-key constraint rejects a duplicate, the ETS and Mnesia data layers implemented create as a keyed insert that replaces any existing entry with the same primary key (lib/ash/data_layer/ets/ets.ex, lib/ash/data_layer/mnesia/mnesia.ex). An actor who can set the primary key on a create (for example a user-supplied string or integer key) can submit a create whose key matches an existing record and silently overwrite it, destroying and replacing another entity's data without going through the update action or its policies. The fix rejects a create whose primary key already exists with an already-taken error, and only allows duplicates for keyless resources.\n\nThis issue affects ash: from 0.4.0 before 3.32.2." } ], "impacts": [ { "capecId": "CAPEC-1", "descriptions": [ { "lang": "en", "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs" } ] } ], "metrics": [ { "cvssV4_0": { "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "baseScore": 5.9, "baseSeverity": "MEDIUM", "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:N/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-284", "description": "CWE-284 Improper Access Control", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-09-01T03:42:28.309Z" }, "references": [ { "tags": [ "vendor-advisory", "related" ], "url": "https://github.com/ash-project/ash/security/advisories/GHSA-92x7-q3h5-wf88" }, { "tags": [ "related" ], "url": "https://cna.erlef.org/cves/CVE-2026-82745.html" }, { "tags": [ "related" ], "url": "https://osv.dev/vulnerability/EEF-CVE-2026-82745" }, { "tags": [ "patch" ], "url": "https://github.com/ash-project/ash/commit/912e243196017c2a812c25905c2b1cc3bbb843fc" } ], "source": { "discovery": "EXTERNAL" }, "title": "ETS and Mnesia data layers overwrite an existing record on create instead of enforcing primary-key uniqueness" }, "adp": [ { "references": [ { "url": "https://github.com/ash-project/ash/security/advisories/GHSA-92x7-q3h5-wf88", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-01T15:16:19.826687Z", "id": "CVE-2026-82745", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-01T15:16:38.003Z" } } ] } }