293 lines
14 KiB
JSON
293 lines
14 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-55736",
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"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"state": "PUBLISHED",
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"assignerShortName": "EEF",
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"dateReserved": "2026-06-17T10:44:34.365Z",
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"datePublished": "2026-06-23T18:21:13.033Z",
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"dateUpdated": "2026-07-10T04:34:23.070Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"collectionURL": "https://repo.hex.pm",
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"cpes": [
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"cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.Ash.Changeset'"
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],
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"packageName": "ash",
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"packageURL": "pkg:hex/ash",
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"product": "ash",
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"programFiles": [
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"lib/ash/changeset/changeset.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.Ash.Changeset':cast_params/4"
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},
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{
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"name": "'Elixir.Ash.Changeset':get_action_argument/2"
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},
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{
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"name": "'Elixir.Ash.Changeset':atomic_params/4"
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},
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{
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"name": "'Elixir.Ash.Changeset':has_argument?/2"
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}
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],
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"repo": "https://github.com/ash-project/ash",
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"vendor": "ash-project",
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"versions": [
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{
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"lessThan": "3.29.3",
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"status": "affected",
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"version": "3.0.0",
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"versionType": "semver"
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}
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]
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},
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{
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"collectionURL": "https://github.com",
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"cpes": [
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"cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.Ash.Changeset'"
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],
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"packageName": "ash-project/ash",
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"packageURL": "pkg:github/ash-project/ash",
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"product": "ash",
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"programFiles": [
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"lib/ash/changeset/changeset.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.Ash.Changeset':cast_params/4"
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},
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{
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"name": "'Elixir.Ash.Changeset':get_action_argument/2"
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},
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{
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"name": "'Elixir.Ash.Changeset':atomic_params/4"
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},
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{
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"name": "'Elixir.Ash.Changeset':has_argument?/2"
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}
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],
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"repo": "https://github.com/ash-project/ash",
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"vendor": "ash-project",
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"versions": [
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{
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"lessThan": "d9b3100219b3ea86d73202bf7368c03a7688efea",
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"status": "affected",
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"version": "5967ed3a483ab949866e6d7b043b043e61703f17",
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"versionType": "git"
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}
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]
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}
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],
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"configurations": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "<p>An action must declare a private argument (one defined with <tt>public?: false</tt>) whose value is meant to be set only by trusted server-side code, and the application must build the changeset from untrusted user-supplied parameters, passing them straight into <tt>Ash.Changeset.for_create/3</tt>, <tt>for_update/3</tt>, <tt>for_destroy/3</tt>, or into an atomic or bulk update.</p>"
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}
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],
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"value": "An action must declare a private argument (one defined with public?: false) whose value is meant to be set only by trusted server-side code, and the application must build the changeset from untrusted user-supplied parameters, passing them straight into Ash.Changeset.for_create/3, for_update/3, for_destroy/3, or into an atomic or bulk update."
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"cpeMatch": [
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{
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"criteria": "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "3.29.3",
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"versionStartIncluding": "3.0.0",
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"vulnerable": true
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}
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],
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"negate": false,
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"operator": "OR"
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}
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],
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"operator": "AND"
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "Alfred Vié"
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},
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{
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"lang": "en",
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"type": "remediation reviewer",
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"value": "Zach Daniel"
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},
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{
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"lang": "en",
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"type": "analyst",
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"value": "Jonatan Männchen / EEF"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in ash-project ash allows a user to set the value of a private action argument that is intended to be controlled only by trusted server-side code.<p>Action arguments declared with <tt>public?: false</tt> are meant to be set internally (for example via <tt>Ash.Changeset.set_private_argument/3</tt>) and must not be settable from end-user input. When a changeset is built from a parameter map, Ash filters out private arguments, but the filtering is incomplete.</p><p>In the regular changeset path (<tt>for_create</tt>, <tt>for_update</tt>, <tt>for_destroy</tt>), private arguments are stripped only when the parameter key is an atom. When the key is a binary (string), as is the case for user-supplied parameters, the private argument is kept and the user controls its value. In the atomic path (<tt>Ash.Changeset.fully_atomic_changeset/4</tt>, also reached through atomic and bulk updates), private arguments are not stripped at all, regardless of whether the key is an atom or a binary.</p><p>An attacker who can submit parameters to an action that defines a private argument can therefore inject a value for that argument. Depending on how the application uses the argument (for example an <tt>acting_user_id</tt> driving authorization or record ownership), this can lead to an integrity violation or privilege escalation.</p><p>This issue affects ash: from 3.0.0 before 3.29.3.</p>"
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}
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],
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"value": "Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in ash-project ash allows a user to set the value of a private action argument that is intended to be controlled only by trusted server-side code.\n\nAction arguments declared with public?: false are meant to be set internally (for example via Ash.Changeset.set_private_argument/3) and must not be settable from end-user input. When a changeset is built from a parameter map, Ash filters out private arguments, but the filtering is incomplete.\n\nIn the regular changeset path (for_create, for_update, for_destroy), private arguments are stripped only when the parameter key is an atom. When the key is a binary (string), as is the case for user-supplied parameters, the private argument is kept and the user controls its value. In the atomic path (Ash.Changeset.fully_atomic_changeset/4, also reached through atomic and bulk updates), private arguments are not stripped at all, regardless of whether the key is an atom or a binary.\n\nAn attacker who can submit parameters to an action that defines a private argument can therefore inject a value for that argument. Depending on how the application uses the argument (for example an acting_user_id driving authorization or record ownership), this can lead to an integrity violation or privilege escalation.\n\nThis issue affects ash: from 3.0.0 before 3.29.3."
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-77",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-77 Manipulating User-Controlled Variables"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"attackVector": "LOCAL",
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"baseScore": 5.9,
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"baseSeverity": "MEDIUM",
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"privilegesRequired": "NONE",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"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",
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"version": "4.0",
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"vulnAvailabilityImpact": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-915",
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"description": "CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"shortName": "EEF",
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"dateUpdated": "2026-07-10T04:34:23.070Z"
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},
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"references": [
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{
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"tags": [
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"vendor-advisory",
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"related"
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],
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"url": "https://github.com/ash-project/ash/security/advisories/GHSA-f4hc-ppw9-4hhw"
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},
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{
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"tags": [
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"related"
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],
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"url": "https://cna.erlef.org/cves/CVE-2026-55736.html"
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},
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{
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"tags": [
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"related"
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],
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"url": "https://osv.dev/vulnerability/EEF-CVE-2026-55736"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/ash-project/ash/commit/d9b3100219b3ea86d73202bf7368c03a7688efea"
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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},
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"title": "Private action arguments can be set by user input in Ash",
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"x_generator": {
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"engine": "cvelib 1.8.0"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/ash-project/ash/security/advisories/GHSA-f4hc-ppw9-4hhw",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-07-09T14:53:04.134939Z",
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"id": "CVE-2026-55736",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-07-09T14:53:33.529Z"
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}
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}
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]
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}
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} |