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vuln-cve/data/2026/84xxx/CVE-2026-84712.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-84712",
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"state": "PUBLISHED",
"assignerShortName": "redhat",
"dateReserved": "2026-09-02T00:44:46.968Z",
"datePublished": "2026-09-23T19:40:22.582Z",
"dateUpdated": "2026-11-06T01:06:32.460Z"
},
"containers": {
"cna": {
"title": "Automation-controller: automation-controller: unauthenticated /api/v2/ping/ discloses automation-mesh instance topology and instance-group membership",
"metrics": [
{
"other": {
"content": {
"value": "Moderate",
"namespace": "https://access.redhat.com/security/updates/classification/"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the automation-controller API. The\n unauthenticated health-check endpoint /api/v2/ping/\n (ApiV2PingView, AllowAny) over-serializes RBAC-gated\n automation-mesh data into its anonymous response, exposing the\n full instance inventory (node hostnames, node types, UUIDs,\n heartbeats, capacities, and exact versions), all instance-group\n names and membership, the deployment install UUID, and the\n active control node. A remote, unauthenticated attacker can use\n this to map the control plane and fingerprint software versions\n for targeted attacks. This flaw affects confidentiality only;\n it does not expose secrets, credentials, or tenant data."
}
],
"affected": [
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"product": "Red Hat Ansible Automation Platform 2.5 for RHEL 8",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "automation-controller",
"defaultStatus": "affected",
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"lessThan": "*",
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"lessThan": "*",
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"cpe:/a:redhat:ansible_automation_platform_developer:2.5::el8",
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"packageName": "automation-controller",
"defaultStatus": "affected",
"versions": [
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"lessThan": "*",
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"product": "Red Hat Ansible Automation Platform 2.6 for RHEL 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"defaultStatus": "affected",
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"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "ansible-automation-platform-26/controller-rhel9",
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],
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2026:71113",
"name": "RHSA-2026:71113",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
]
},
{
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"name": "RHSA-2026:71114",
"tags": [
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},
{
"url": "https://access.redhat.com/errata/RHSA-2026:71177",
"name": "RHSA-2026:71177",
"tags": [
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"x_refsource_REDHAT"
]
},
{
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"name": "RHSA-2026:71179",
"tags": [
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},
{
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"tags": [
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"x_refsource_REDHAT"
]
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2527196",
"name": "RHBZ#2527196",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
]
}
],
"datePublic": "2026-09-23T00:00:00.000Z",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-497",
"description": "Exposure of Sensitive System Information to an Unauthorized Control Sphere",
"lang": "en",
"type": "CWE"
}
]
}
],
"x_redhatCweChain": "CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere",
"workarounds": [
{
"lang": "en",
"value": "There is no configuration option that trims the data returned by the unauthenticated /api/v2/ping/ endpoint (also reachable as /api/controller/v2/ping/). Exposure can be reduced by restricting network access to the automation-controller API so that only trusted networks and health probes can reach it: block or restrict external access to the /api/v2/ping/ and /api/controller/v2/ping/ routes at the reverse proxy, load balancer, or firewall, and front health checks with an infrastructure-level probe that does not proxy the /ping/ endpoint to untrusted clients. The definitive fix is to update to a version of automation-controller that no longer serializes instance, instance-group, install UUID, and active-node data in the unauthenticated response."
}
],
"timeline": [
{
"lang": "en",
"time": "2026-09-02T00:44:52.036Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-09-23T00:00:00.000Z",
"value": "Made public."
}
],
"providerMetadata": {
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat",
"dateUpdated": "2026-11-06T01:06:32.460Z"
},
"x_generator": {
"engine": "cvelib 1.8.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-09-24T14:29:05.289631Z",
"id": "CVE-2026-84712",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
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"shortName": "CISA-ADP",
"dateUpdated": "2026-09-24T14:32:34.757Z"
}
}
]
}
}
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