287 lines
14 KiB
JSON
287 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-2026-81852",
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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": "2026-08-30T23:15:02.378Z",
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"datePublished": "2026-08-31T02:29:14.304Z",
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"dateUpdated": "2026-08-31T15:59:44.933Z"
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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_admin:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.AshAdmin.Router'",
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"'Elixir.AshAdmin.Layouts'"
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],
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"packageName": "ash_admin",
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"packageURL": "pkg:hex/ash_admin",
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"product": "ash_admin",
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"programFiles": [
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"lib/ash_admin/router.ex",
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"lib/ash_admin/components/layouts.ex"
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],
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"repo": "https://github.com/ash-project/ash_admin",
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"vendor": "ash-project",
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"versions": [
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{
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"lessThan": "1.3.1",
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"status": "affected",
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"version": "0.10.8",
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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_admin:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.AshAdmin.Router'",
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"'Elixir.AshAdmin.Layouts'"
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],
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"packageName": "ash-project/ash_admin",
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"packageURL": "pkg:github/ash-project/ash_admin",
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"product": "ash_admin",
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"programFiles": [
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"lib/ash_admin/router.ex",
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"lib/ash_admin/components/layouts.ex"
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],
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"repo": "https://github.com/ash-project/ash_admin",
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"vendor": "ash-project",
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"versions": [
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{
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"lessThan": "bc7a1cdf873b16971a8efec35d085f8bb706314f",
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"status": "affected",
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"version": "99b8daed7b2f79d82fcd9e89338d41b0e1564aa7",
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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>The application mounts AshAdmin without <code>:csp_nonce_assign_key</code> and enforces a nonce-based CSP whose <code>script-src</code> allow-lists the default <code>ash_admin-Ed55GFnX</code> value, and has a separate HTML-injection sink on an admin page.</p>"
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},
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{
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"base64": false,
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"type": "text/markdown",
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"value": "The application mounts AshAdmin without `:csp_nonce_assign_key` and enforces a nonce-based CSP whose `script-src` allow-lists the default `ash_admin-Ed55GFnX` value, and has a separate HTML-injection sink on an admin page."
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}
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],
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"value": "The application mounts AshAdmin without :csp_nonce_assign_key and enforces a nonce-based CSP whose script-src allow-lists the default ash_admin-Ed55GFnX value, and has a separate HTML-injection sink on an admin page."
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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_admin:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "1.3.1",
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"versionStartIncluding": "0.10.8",
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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": "Peter Ullrich"
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},
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{
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"lang": "en",
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"type": "reporter",
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"value": "Peter Ullrich"
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},
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "Zach Daniel / Ash Project"
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},
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{
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"lang": "en",
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"type": "coordinator",
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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": "<p>Use of Insufficiently Random Values vulnerability in ash-project ash_admin ships a hardcoded, publicly known CSP nonce, defeating nonce-based Content-Security-Policy protection.</p>\n<p>When mounted without <code>:csp_nonce_assign_key</code>, <code>AshAdmin.Router.ash_admin/2</code> defaulted the img, style, and script nonces to the literal constant <code>ash_admin-Ed55GFnX</code>, which <code>AshAdmin.Layouts</code> wrote verbatim into the <code>nonce</code> attribute of its inline <code><style></code> and <code><script></code> tags on every response. The value is a compile-time constant published in the repository and is never rotated per request. If an application's CSP <code>script-src</code> allow-lists that documented default, any HTML-injection sink on an admin page can reuse the known nonce to run inline scripts the policy was meant to block. The fix generates a fresh random nonce per request.</p>\n<p>This issue affects ash_admin: from 0.10.8 before 1.3.1.</p>"
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},
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{
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"base64": false,
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"type": "text/markdown",
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"value": "Use of Insufficiently Random Values vulnerability in ash-project ash_admin ships a hardcoded, publicly known CSP nonce, defeating nonce-based Content-Security-Policy protection.\n\nWhen mounted without `:csp_nonce_assign_key`, `AshAdmin.Router.ash_admin/2` defaulted the img, style, and script nonces to the literal constant `ash_admin-Ed55GFnX`, which `AshAdmin.Layouts` wrote verbatim into the `nonce` attribute of its inline `<style>` and `<script>` tags on every response. The value is a compile-time constant published in the repository and is never rotated per request. If an application's CSP `script-src` allow-lists that documented default, any HTML-injection sink on an admin page can reuse the known nonce to run inline scripts the policy was meant to block. The fix generates a fresh random nonce per request.\n\nThis issue affects ash_admin: from 0.10.8 before 1.3.1."
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}
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],
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"value": "Use of Insufficiently Random Values vulnerability in ash-project ash_admin ships a hardcoded, publicly known CSP nonce, defeating nonce-based Content-Security-Policy protection.\n\nWhen mounted without :csp_nonce_assign_key, AshAdmin.Router.ash_admin/2 defaulted the img, style, and script nonces to the literal constant ash_admin-Ed55GFnX, which AshAdmin.Layouts wrote verbatim into the nonce attribute of its inline <style> and <script> tags on every response. The value is a compile-time constant published in the repository and is never rotated per request. If an application's CSP script-src allow-lists that documented default, any HTML-injection sink on an admin page can reuse the known nonce to run inline scripts the policy was meant to block. The fix generates a fresh random nonce per request.\n\nThis issue affects ash_admin: from 0.10.8 before 1.3.1."
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-63",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-63 Cross-Site Scripting (XSS)"
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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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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"attackVector": "NETWORK",
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"baseScore": 2.1,
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"baseSeverity": "LOW",
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"privilegesRequired": "NONE",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "ACTIVE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/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": "LOW",
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"vulnIntegrityImpact": "LOW",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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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-330",
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"description": "CWE-330 Use of Insufficiently Random Values",
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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": "2026-08-31T02:29:14.304Z"
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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_admin/security/advisories/GHSA-whfj-rrrp-j597"
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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-2026-81852.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-2026-81852"
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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_admin/commit/bc7a1cdf873b16971a8efec35d085f8bb706314f"
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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": "AshAdmin ships a hardcoded CSP nonce, allowing nonce-based CSP bypass"
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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_admin/security/advisories/GHSA-whfj-rrrp-j597",
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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": "2026-08-31T15:59:13.805623Z",
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"id": "CVE-2026-81852",
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"options": [
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{
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"Exploitation": "none"
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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": "2026-08-31T15:59:44.933Z"
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}
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}
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]
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}
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} |